diff --git a/spring-boot-project/spring-boot-starters/spring-boot-starter-test/build.gradle b/spring-boot-project/spring-boot-starters/spring-boot-starter-test/build.gradle
index e98d71281766..c5a856d8fb6e 100644
--- a/spring-boot-project/spring-boot-starters/spring-boot-starter-test/build.gradle
+++ b/spring-boot-project/spring-boot-starters/spring-boot-starter-test/build.gradle
@@ -24,3 +24,8 @@ dependencies {
 		exclude group: "javax.xml.bind", module: "jaxb-api"
 	}
 }
+
+checkRuntimeClasspathForConflicts {
+	ignore { name -> name.startsWith("mockito-extensions/") }
+}
+
diff --git a/spring-boot-project/spring-boot-test/src/test/java/org/springframework/boot/test/mock/mockito/SpringBootMockResolverIntegrationTests.java b/spring-boot-project/spring-boot-test/src/test/java/org/springframework/boot/test/mock/mockito/SpringBootMockResolverIntegrationTests.java
index c6c18e63932f..04990b5c5292 100644
--- a/spring-boot-project/spring-boot-test/src/test/java/org/springframework/boot/test/mock/mockito/SpringBootMockResolverIntegrationTests.java
+++ b/spring-boot-project/spring-boot-test/src/test/java/org/springframework/boot/test/mock/mockito/SpringBootMockResolverIntegrationTests.java
@@ -16,8 +16,10 @@
 
 package org.springframework.boot.test.mock.mockito;
 
+import org.assertj.core.api.Condition;
 import org.junit.jupiter.api.Test;
 import org.mockito.internal.configuration.plugins.Plugins;
+import org.mockito.plugins.MockResolver;
 
 import static org.assertj.core.api.Assertions.assertThat;
 
@@ -33,7 +35,8 @@ class SpringBootMockResolverIntegrationTests {
 
 	@Test
 	void customMockResolverIsRegisteredWithMockito() {
-		assertThat(Plugins.getMockResolvers()).hasOnlyElementsOfType(SpringBootMockResolver.class);
+		assertThat(Plugins.getMockResolvers()).haveAtLeastOne(new Condition<MockResolver>(
+				SpringBootMockResolver.class::isInstance, "Spring Boot mock resolver instance"));
 	}
 
 }