diff --git a/README.md b/README.md
index 4fe61865..23256916 100644
--- a/README.md
+++ b/README.md
@@ -192,6 +192,7 @@ Elasticsearch-Evolution can be configured to your needs:
 -   **placeholderSuffix** (default=}): Suffix of placeholders in migration scripts.
 -   **historyIndex** (default=es_evolution): Name of the history index that will be used by Elasticsearch-Evolution. In this index Elasticsearch-Evolution will persist his internal state and tracks which migration script has already been executed.
 -   **historyMaxQuerySize** (default=1000): The maximum query size while validating already executed scripts. This query size have to be higher than the total count of your migration scripts.
+-   **validateOnMigrate** (default=true): Whether to fail when a previously applied migration script has been modified after it was applied.
 
 ### 5.1 Spring Boot
 
@@ -288,12 +289,16 @@ ElasticsearchEvolution.configure()
 
 ### v0.4.1-SNAPSHOT
 
+
+- Previously applied migration scripts are now checked for modifications and rejected if they've been modified after they were applied. The old behaviour can be restored by setting the new configuration parameter `validateOnMigrate` to false (default: true) ([#155](https://github.com/senacor/elasticsearch-evolution/isse/155))
+
 - version updates (spring-boot 2.7.4)
 - added java 19 compatibility tests
 - added spring boot 2.7 compatibility tests
-- added Elasticsearch 8.4, 8.3, and 8,2 compatibility tests
+- added Elasticsearch 8.4, 8.3, and 8,2 compatibility test
 - added Opensearch 2.3, 2.2, 2.1 and 2.0 compatibility tests
 
+
 ### v0.4.0
 
 - **breaking change**: drop `org.elasticsearch.client.RestHighLevelClient` and replace with `org.elasticsearch.client.RestClient` (LowLevelClient). This will drop the big transitive dependency `org.elasticsearch:elasticsearch` and opens compatibility to Elasticsearch 8 and OpenSearch.
diff --git a/elasticsearch-evolution-core/src/main/java/com/senacor/elasticsearch/evolution/core/ElasticsearchEvolution.java b/elasticsearch-evolution-core/src/main/java/com/senacor/elasticsearch/evolution/core/ElasticsearchEvolution.java
index ef80d791..bc90a4ba 100644
--- a/elasticsearch-evolution-core/src/main/java/com/senacor/elasticsearch/evolution/core/ElasticsearchEvolution.java
+++ b/elasticsearch-evolution-core/src/main/java/com/senacor/elasticsearch/evolution/core/ElasticsearchEvolution.java
@@ -168,6 +168,7 @@ protected MigrationService createMigrationService() {
                 10_000,
                 getRestClient(),
                 ContentType.parse(getConfig().getDefaultContentType()),
-                getConfig().getEncoding());
+                getConfig().getEncoding(),
+                getConfig().getValidateOnMigrate());
     }
 }
diff --git a/elasticsearch-evolution-core/src/main/java/com/senacor/elasticsearch/evolution/core/api/config/ElasticsearchEvolutionConfig.java b/elasticsearch-evolution-core/src/main/java/com/senacor/elasticsearch/evolution/core/api/config/ElasticsearchEvolutionConfig.java
index 03e410db..33facad4 100644
--- a/elasticsearch-evolution-core/src/main/java/com/senacor/elasticsearch/evolution/core/api/config/ElasticsearchEvolutionConfig.java
+++ b/elasticsearch-evolution-core/src/main/java/com/senacor/elasticsearch/evolution/core/api/config/ElasticsearchEvolutionConfig.java
@@ -83,6 +83,11 @@ public class ElasticsearchEvolutionConfig {
      */
     private int historyMaxQuerySize = 1_000;
 
+    /**
+     * Whether to fail when a previously applied migration script has been modified after it was applied.
+     */
+    private boolean validateOnMigrate = true;
+
     /**
      * Loads this configuration into a new ElasticsearchEvolution instance.
      *
@@ -236,6 +241,15 @@ public ElasticsearchEvolutionConfig setHistoryMaxQuerySize(int historyMaxQuerySi
         return this;
     }
 
+    public boolean getValidateOnMigrate() {
+        return validateOnMigrate;
+    }
+
+    public ElasticsearchEvolutionConfig setValidateOnMigrate(boolean validateOnMigrate) {
+        this.validateOnMigrate = validateOnMigrate;
+        return this;
+    }
+
     @Override
     public String toString() {
         return "ElasticsearchEvolutionConfig{" +
@@ -251,6 +265,7 @@ public String toString() {
                 ", placeholderReplacement=" + placeholderReplacement +
                 ", historyIndex='" + historyIndex + '\'' +
                 ", historyMaxQuerySize=" + historyMaxQuerySize +
+                ", validateOnMigrate=" + validateOnMigrate +
                 '}';
     }
 }
diff --git a/elasticsearch-evolution-core/src/main/java/com/senacor/elasticsearch/evolution/core/internal/migration/execution/MigrationServiceImpl.java b/elasticsearch-evolution-core/src/main/java/com/senacor/elasticsearch/evolution/core/internal/migration/execution/MigrationServiceImpl.java
index 5dbfd737..599e8261 100644
--- a/elasticsearch-evolution-core/src/main/java/com/senacor/elasticsearch/evolution/core/internal/migration/execution/MigrationServiceImpl.java
+++ b/elasticsearch-evolution-core/src/main/java/com/senacor/elasticsearch/evolution/core/internal/migration/execution/MigrationServiceImpl.java
@@ -37,17 +37,20 @@ public class MigrationServiceImpl implements MigrationService {
     private final RestClient restClient;
     private final ContentType defaultContentType;
     private final Charset encoding;
+    private final boolean validateOnMigrate;
 
     public MigrationServiceImpl(HistoryRepository historyRepository,
                                 int waitUntilUnlockedMinTimeInMillis,
                                 int waitUntilUnlockedMaxTimeInMillis,
                                 RestClient restClient,
                                 ContentType defaultContentType,
-                                Charset encoding) {
+                                Charset encoding,
+                                boolean validateOnMigrate) {
         this.historyRepository = requireNonNull(historyRepository, "historyRepository must not be null");
         this.restClient = requireNonNull(restClient, "restClient must not be null");
         this.defaultContentType = requireNonNull(defaultContentType);
         this.encoding = requireNonNull(encoding);
+        this.validateOnMigrate = validateOnMigrate;
         this.waitUntilUnlockedMinTimeInMillis = requireCondition(waitUntilUnlockedMinTimeInMillis,
                 min -> min >= 0 && min <= waitUntilUnlockedMaxTimeInMillis,
                 "waitUntilUnlockedMinTimeInMillis (%s) must not be negative and must not be greater than waitUntilUnlockedMaxTimeInMillis (%s)",
@@ -185,9 +188,20 @@ List<ParsedMigrationScript> getPendingScriptsToBeExecuted(Collection<ParsedMigra
             ParsedMigrationScript parsedMigrationScript = orderedScripts.get(i);
             if (!protocol.getVersion().equals(parsedMigrationScript.getFileNameInfo().getVersion())) {
                 throw new MigrationException(String.format(
-                        "The logged execution in the Elasticsearch-Evolution history index at position %s is version %s and in the same position in the given migration scripts is version %s! Out of order execution is not supported. Or maybe you have added new migration scripts in between or have to cleanup the Elasticsearch-Evolution history index manually",
+                        "The logged execution in the Elasticsearch-Evolution history index at position %s " +
+                                "is version %s and in the same position in the given migration scripts is version %s! " +
+                                "Out of order execution is not supported. Or maybe you have added new migration scripts " +
+                                "in between or have to cleanup the Elasticsearch-Evolution history index manually",
                         i, protocol.getVersion(), parsedMigrationScript.getFileNameInfo().getVersion()));
             }
+            // failed scripts can be edited and retried, but successfully executed scripts may not be modified afterwards
+            if (validateOnMigrate && protocol.isSuccess() && protocol.getChecksum() != parsedMigrationScript.getChecksum()) {
+                throw new MigrationException(String.format(
+                        "The logged execution for the migration script at position %s (%s) " +
+                                "has a different checksum from the given migration script! " +
+                                "Modifying already-executed scripts is not supported.",
+                        i, protocol.getScriptName()));
+            }
 
             if (protocol.isSuccess()) {
                 res.remove(parsedMigrationScript);
diff --git a/elasticsearch-evolution-core/src/test/java/com/senacor/elasticsearch/evolution/core/internal/migration/execution/MigrationServiceImplIT.java b/elasticsearch-evolution-core/src/test/java/com/senacor/elasticsearch/evolution/core/internal/migration/execution/MigrationServiceImplIT.java
index fa37ba49..0afeaf58 100644
--- a/elasticsearch-evolution-core/src/test/java/com/senacor/elasticsearch/evolution/core/internal/migration/execution/MigrationServiceImplIT.java
+++ b/elasticsearch-evolution-core/src/test/java/com/senacor/elasticsearch/evolution/core/internal/migration/execution/MigrationServiceImplIT.java
@@ -57,7 +57,7 @@ void OK_indexDocumentIsWrittenToElasticsearch(String versionInfo, EsUtils esUtil
 
             MigrationServiceImpl underTest = new MigrationServiceImpl(historyRepositoryMock,
                     0, 0, restHighLevelClient.getLowLevelClient(),
-                    defaultContentType, encoding);
+                    defaultContentType, encoding, true);
 
             MigrationScriptProtocol res = underTest.executeScript(script).getProtocol();
 
diff --git a/elasticsearch-evolution-core/src/test/java/com/senacor/elasticsearch/evolution/core/internal/migration/execution/MigrationServiceImplTest.java b/elasticsearch-evolution-core/src/test/java/com/senacor/elasticsearch/evolution/core/internal/migration/execution/MigrationServiceImplTest.java
index 9091c344..3f5a86a8 100644
--- a/elasticsearch-evolution-core/src/test/java/com/senacor/elasticsearch/evolution/core/internal/migration/execution/MigrationServiceImplTest.java
+++ b/elasticsearch-evolution-core/src/test/java/com/senacor/elasticsearch/evolution/core/internal/migration/execution/MigrationServiceImplTest.java
@@ -68,7 +68,7 @@ class waitUntilUnlocked {
         void noLockExists() {
             doReturn(false).when(historyRepository).isLocked();
             MigrationServiceImpl underTest = new MigrationServiceImpl(historyRepository,
-                    2000, 2000, restClient, defaultContentType, encoding);
+                    2000, 2000, restClient, defaultContentType, encoding, true);
 
             assertTimeout(Duration.ofSeconds(1), underTest::waitUntilUnlocked);
 
@@ -81,7 +81,7 @@ void noLockExists() {
         void LockExistsAndGetsReleased() {
             doReturn(true, false).when(historyRepository).isLocked();
             MigrationServiceImpl underTest = new MigrationServiceImpl(historyRepository,
-                    100, 100, restClient, defaultContentType, encoding);
+                    100, 100, restClient, defaultContentType, encoding, true);
 
             assertTimeout(Duration.ofMillis(200), underTest::waitUntilUnlocked);
 
@@ -97,7 +97,7 @@ class getPendingScriptsToBeExecuted {
         void emptyHistory_allScriptsHaveToBeReturned() {
             doReturn(new TreeSet<>()).when(historyRepository).findAll();
             MigrationServiceImpl underTest = new MigrationServiceImpl(historyRepository,
-                    0, 0, restClient, defaultContentType, encoding);
+                    0, 0, restClient, defaultContentType, encoding, true);
             ParsedMigrationScript parsedMigrationScript1_1 = createParsedMigrationScript("1.1");
             ParsedMigrationScript parsedMigrationScript1_0 = createParsedMigrationScript("1.0");
             List<ParsedMigrationScript> parsedMigrationScripts = asList(
@@ -121,7 +121,7 @@ void scriptsAndHistoryInSync_noScriptsWillBeReturned() {
                     createMigrationScriptProtocol("1.1", true)
             ))).when(historyRepository).findAll();
             MigrationServiceImpl underTest = new MigrationServiceImpl(historyRepository,
-                    0, 0, restClient, defaultContentType, encoding);
+                    0, 0, restClient, defaultContentType, encoding, true);
 
             List<ParsedMigrationScript> parsedMigrationScripts = asList(
                     createParsedMigrationScript("1.1"),
@@ -142,7 +142,7 @@ void lastHistoryVersionWasFailing_AllScriptsInclFailedWillBeReturned() {
                     createMigrationScriptProtocol("1.1", false)
             ))).when(historyRepository).findAll();
             MigrationServiceImpl underTest = new MigrationServiceImpl(historyRepository,
-                    0, 0, restClient, defaultContentType, encoding);
+                    0, 0, restClient, defaultContentType, encoding, true);
 
             ParsedMigrationScript parsedMigrationScript1_0 = createParsedMigrationScript("1.0");
             ParsedMigrationScript parsedMigrationScript1_1 = createParsedMigrationScript("1.1");
@@ -167,7 +167,7 @@ void moreHistoryVersionsThanScripts_warningIsShownAnNoScriptsWillBeReturned() {
                     createMigrationScriptProtocol("1.2", false)
             ))).when(historyRepository).findAll();
             MigrationServiceImpl underTest = new MigrationServiceImpl(historyRepository,
-                    0, 0, restClient, defaultContentType, encoding);
+                    0, 0, restClient, defaultContentType, encoding, true);
 
             ParsedMigrationScript parsedMigrationScript1_0 = createParsedMigrationScript("1.0");
             ParsedMigrationScript parsedMigrationScript1_1 = createParsedMigrationScript("1.1");
@@ -190,7 +190,7 @@ void outOfOrderExecutionIsNotSupported() {
                     createMigrationScriptProtocol("1.1", true)
             ))).when(historyRepository).findAll();
             MigrationServiceImpl underTest = new MigrationServiceImpl(historyRepository,
-                    0, 0, restClient, defaultContentType, encoding);
+                    0, 0, restClient, defaultContentType, encoding, true);
 
             ParsedMigrationScript parsedMigrationScript1_0 = createParsedMigrationScript("1.0");
             ParsedMigrationScript parsedMigrationScript1_0_1 = createParsedMigrationScript("1.0.1");
@@ -204,6 +204,79 @@ void outOfOrderExecutionIsNotSupported() {
                     .isInstanceOf(MigrationException.class)
                     .hasMessage("The logged execution in the Elasticsearch-Evolution history index at position 1 is version 1.1 and in the same position in the given migration scripts is version 1.0.1! Out of order execution is not supported. Or maybe you have added new migration scripts in between or have to cleanup the Elasticsearch-Evolution history index manually");
         }
+
+        @Test
+        void failingScriptWasEdited_shouldReturnAllScriptsInclFailing() {
+            doReturn(new TreeSet<>(asList(
+                    createMigrationScriptProtocol("1.0", true, 1),
+                    createMigrationScriptProtocol("1.1", false, 2)
+            ))).when(historyRepository).findAll();
+            MigrationServiceImpl underTest = new MigrationServiceImpl(historyRepository,
+                                                                      0, 0, restClient, defaultContentType, encoding, true);
+
+            ParsedMigrationScript parsedMigrationScript1_0 = createParsedMigrationScript("1.0", 1);
+            ParsedMigrationScript parsedMigrationScript1_1 = createParsedMigrationScript("1.1", 3);
+            ParsedMigrationScript parsedMigrationScript1_2 = createParsedMigrationScript("1.2", 4);
+            List<ParsedMigrationScript> parsedMigrationScripts = asList(
+                    parsedMigrationScript1_1,
+                    parsedMigrationScript1_0,
+                    parsedMigrationScript1_2);
+
+            List<ParsedMigrationScript> res = underTest.getPendingScriptsToBeExecuted(parsedMigrationScripts);
+
+            assertThat(res).hasSize(2);
+            assertThat(res.get(0)).isSameAs(parsedMigrationScript1_1);
+            assertThat(res.get(1)).isSameAs(parsedMigrationScript1_2);
+            InOrder order = inOrder(historyRepository);
+            order.verify(historyRepository).findAll();
+            order.verifyNoMoreInteractions();
+        }
+
+        @Test
+        void successfulScriptWasEdited_shouldThrowChecksumMismatchException() {
+            doReturn(new TreeSet<>(asList(
+                    createMigrationScriptProtocol("1.0", true, 1),
+                    createMigrationScriptProtocol("1.1", true, 2)
+            ))).when(historyRepository).findAll();
+            MigrationServiceImpl underTest = new MigrationServiceImpl(historyRepository,
+                                                                      0, 0, restClient, defaultContentType, encoding, true);
+
+            ParsedMigrationScript parsedMigrationScript1_0 = createParsedMigrationScript("1.0", 1);
+            ParsedMigrationScript parsedMigrationScript1_1 = createParsedMigrationScript("1.1", 3);
+            List<ParsedMigrationScript> parsedMigrationScripts = asList(
+                    parsedMigrationScript1_1,
+                    parsedMigrationScript1_0);
+
+            assertThatThrownBy(() -> underTest.getPendingScriptsToBeExecuted(parsedMigrationScripts))
+                    .isInstanceOf(MigrationException.class)
+                    .hasMessage("The logged execution for the migration script at position 1 (V1.1__1.1.http) " +
+                                        "has a different checksum from the given migration script! " +
+                                        "Modifying already-executed scripts is not supported.");
+        }
+
+        @Test
+        void successfulScriptWasEdited_shouldContinueIfValidateOnMigrateIsDisabled() {
+            doReturn(new TreeSet<>(asList(
+                    createMigrationScriptProtocol("1.0", true, 1),
+                    createMigrationScriptProtocol("1.1", true, 2)
+            ))).when(historyRepository).findAll();
+            MigrationServiceImpl underTest = new MigrationServiceImpl(historyRepository,
+                                                                      0, 0, restClient, defaultContentType, encoding, false);
+
+            ParsedMigrationScript parsedMigrationScript1_0 = createParsedMigrationScript("1.0", 1);
+            ParsedMigrationScript parsedMigrationScript1_1 = createParsedMigrationScript("1.1", 3);
+            List<ParsedMigrationScript> parsedMigrationScripts = asList(
+                    parsedMigrationScript1_1,
+                    parsedMigrationScript1_0);
+
+            List<ParsedMigrationScript> res = underTest.getPendingScriptsToBeExecuted(parsedMigrationScripts);
+
+            assertThat(res).hasSize(0);
+            assertThat(res).isEmpty();
+            InOrder order = inOrder(historyRepository);
+            order.verify(historyRepository).findAll();
+            order.verifyNoMoreInteractions();
+        }
     }
 
     @Nested
@@ -215,7 +288,7 @@ void OK_resultIsSetCorrect() throws IOException {
             doReturn(responseMock).when(restClient).performRequest(any());
 
             MigrationServiceImpl underTest = new MigrationServiceImpl(historyRepository,
-                    0, 0, restClient, defaultContentType, encoding);
+                    0, 0, restClient, defaultContentType, encoding, true);
 
             MigrationScriptProtocol res = underTest.executeScript(script).getProtocol();
 
@@ -271,7 +344,7 @@ void OK_requestWithBody() throws IOException {
             doReturn(responseMock).when(restClient).performRequest(any());
 
             MigrationServiceImpl underTest = new MigrationServiceImpl(historyRepository,
-                    0, 0, restClient, defaultContentType, encoding);
+                    0, 0, restClient, defaultContentType, encoding, true);
 
             MigrationScriptProtocol res = underTest.executeScript(script).getProtocol();
 
@@ -311,7 +384,7 @@ void OK_requestWithCustomContentTypeAndDefaultCharset() throws IOException {
             doReturn(responseMock).when(restClient).performRequest(any());
 
             MigrationServiceImpl underTest = new MigrationServiceImpl(historyRepository,
-                    0, 0, restClient, defaultContentType, encoding);
+                    0, 0, restClient, defaultContentType, encoding, true);
 
             MigrationScriptProtocol res = underTest.executeScript(script).getProtocol();
 
@@ -350,7 +423,7 @@ void OK_requestWithCustomContentTypeAndCustomCharset() throws IOException {
             doReturn(responseMock).when(restClient).performRequest(any());
 
             MigrationServiceImpl underTest = new MigrationServiceImpl(historyRepository,
-                    0, 0, restClient, defaultContentType, encoding);
+                    0, 0, restClient, defaultContentType, encoding, true);
 
             MigrationScriptProtocol res = underTest.executeScript(script).getProtocol();
 
@@ -390,7 +463,7 @@ void OK_requestWithCustomHeader() throws IOException {
             doReturn(responseMock).when(restClient).performRequest(any());
 
             MigrationServiceImpl underTest = new MigrationServiceImpl(historyRepository,
-                    0, 0, restClient, defaultContentType, encoding);
+                    0, 0, restClient, defaultContentType, encoding, true);
 
             MigrationScriptProtocol res = underTest.executeScript(script).getProtocol();
 
@@ -426,7 +499,7 @@ void executeScript_failed_status(Exception handledError) throws IOException {
             doThrow(handledError).when(restClient).performRequest(any());
 
             MigrationServiceImpl underTest = new MigrationServiceImpl(historyRepository,
-                    0, 0, restClient, defaultContentType, encoding);
+                    0, 0, restClient, defaultContentType, encoding, true);
 
             ExecutionResult res = underTest.executeScript(script);
 
@@ -445,7 +518,7 @@ void executeScript_failed_status(int httpStatusCode) throws IOException {
             doReturn(responseMock).when(restClient).performRequest(any());
 
             MigrationServiceImpl underTest = new MigrationServiceImpl(historyRepository,
-                    0, 0, restClient, defaultContentType, encoding);
+                    0, 0, restClient, defaultContentType, encoding, true);
 
             ExecutionResult res = underTest.executeScript(script);
 
@@ -467,7 +540,7 @@ void executeScript_OK_status(int httpStatusCode) throws IOException {
             doReturn(responseMock).when(restClient).performRequest(any());
 
             MigrationServiceImpl underTest = new MigrationServiceImpl(historyRepository,
-                    0, 0, restClient, defaultContentType, encoding);
+                    0, 0, restClient, defaultContentType, encoding, true);
 
             MigrationScriptProtocol res = underTest.executeScript(script).getProtocol();
 
@@ -490,7 +563,7 @@ void allOK() throws IOException {
             Response responseMock = createResponseMock(200);
             doReturn(responseMock).when(restClient).performRequest(any());
             MigrationServiceImpl underTest = new MigrationServiceImpl(historyRepository,
-                    0, 0, restClient, defaultContentType, encoding);
+                    0, 0, restClient, defaultContentType, encoding, true);
 
             List<MigrationScriptProtocol> res = underTest.executePendingScripts(scripts);
 
@@ -523,7 +596,7 @@ void firstExecutionFailed() throws IOException {
             Response responseMock = createResponseMock(statusCode);
             doReturn(responseMock).when(restClient).performRequest(any());
             MigrationServiceImpl underTest = new MigrationServiceImpl(historyRepository,
-                    0, 0, restClient, defaultContentType, encoding);
+                    0, 0, restClient, defaultContentType, encoding, true);
 
             assertThatThrownBy(() -> underTest.executePendingScripts(scripts))
                     .isInstanceOf(MigrationException.class)
@@ -556,7 +629,7 @@ void error_unlockWasNotSuccessful() throws IOException {
             Response responseMock = createResponseMock(200);
             doReturn(responseMock).when(restClient).performRequest(any());
             MigrationServiceImpl underTest = new MigrationServiceImpl(historyRepository,
-                    0, 0, restClient, defaultContentType, encoding);
+                    0, 0, restClient, defaultContentType, encoding, true);
 
             assertThatThrownBy(() -> underTest.executePendingScripts(scripts))
                     .isInstanceOf(MigrationException.class)
@@ -585,7 +658,7 @@ void error_lockWasNotSuccessful() {
             doReturn(true).when(historyRepository).unlock();
 
             MigrationServiceImpl underTest = new MigrationServiceImpl(historyRepository,
-                    0, 0, restClient, defaultContentType, encoding);
+                    0, 0, restClient, defaultContentType, encoding, true);
 
             assertThatThrownBy(() -> underTest.executePendingScripts(scripts))
                     .isInstanceOf(MigrationException.class)
@@ -603,7 +676,7 @@ void error_lockWasNotSuccessful() {
         @Test
         void emptyScriptsCollection() {
             MigrationServiceImpl underTest = new MigrationServiceImpl(historyRepository,
-                    0, 0, restClient, defaultContentType, encoding);
+                    0, 0, restClient, defaultContentType, encoding, true);
 
             List<MigrationScriptProtocol> res = underTest.executePendingScripts(emptyList());
 
@@ -622,9 +695,13 @@ private Response createResponseMock(int statusCode) {
     }
 
     private MigrationScriptProtocol createMigrationScriptProtocol(String version, boolean success) {
+        return createMigrationScriptProtocol(version, success, 1);
+    }
+
+    private MigrationScriptProtocol createMigrationScriptProtocol(String version, boolean success, int checksum) {
         return new MigrationScriptProtocol()
                 .setVersion(version)
-                .setChecksum(1)
+                .setChecksum(checksum)
                 .setSuccess(success)
                 .setLocked(true)
                 .setDescription(version)
@@ -632,13 +709,17 @@ private MigrationScriptProtocol createMigrationScriptProtocol(String version, bo
     }
 
     private ParsedMigrationScript createParsedMigrationScript(String version) {
+        return createParsedMigrationScript(version, 1);
+    }
+
+    private ParsedMigrationScript createParsedMigrationScript(String version, int checksum) {
         return new ParsedMigrationScript()
                 .setFileNameInfo(
                         new FileNameInfoImpl(fromVersion(version), version, createDefaultScriptName(version)))
-                .setChecksum(1)
+                .setChecksum(checksum)
                 .setMigrationScriptRequest(new MigrationScriptRequest()
-                        .setHttpMethod(DELETE)
-                        .setPath("/"));
+                                                   .setHttpMethod(DELETE)
+                                                   .setPath("/"));
     }
 
     private String createDefaultScriptName(String version) {