diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8dbe3b2a5a2..5be4d9d89fb 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -8,6 +8,7 @@
 - Add missing methods to the `Transaction` interface [#5732](https://github.com/hyperledger/besu/pull/5732)
 
 ### Bug Fixes
+- Make smart contract permissioning features work with london fork [#5727](https://github.com/hyperledger/besu/pull/5727)
 
 ### Download Links
 
diff --git a/acceptance-tests/tests/src/test/resources/permissioning/simple_permissioning_genesis.json b/acceptance-tests/tests/src/test/resources/permissioning/simple_permissioning_genesis.json
index 5aee1cc13b3..04ee1a4882e 100644
--- a/acceptance-tests/tests/src/test/resources/permissioning/simple_permissioning_genesis.json
+++ b/acceptance-tests/tests/src/test/resources/permissioning/simple_permissioning_genesis.json
@@ -1,7 +1,8 @@
 {
   "config": {
     "chainId": 999,
-    "petersburgBlock": 0,
+    "londonBlock": 0,
+    "zeroBaseFee": true,
     "ethash": {
       "fixeddifficulty": 100
     }
diff --git a/acceptance-tests/tests/src/test/resources/permissioning/simple_permissioning_ibft_genesis.json b/acceptance-tests/tests/src/test/resources/permissioning/simple_permissioning_ibft_genesis.json
index 907547b0ca9..6be6cfad3fd 100644
--- a/acceptance-tests/tests/src/test/resources/permissioning/simple_permissioning_ibft_genesis.json
+++ b/acceptance-tests/tests/src/test/resources/permissioning/simple_permissioning_ibft_genesis.json
@@ -1,7 +1,8 @@
 {
   "config": {
     "chainId": 999,
-    "petersburgBlock": 0,
+    "londonBlock": 0,
+    "zeroBaseFee": true,
     "ibft2": {
       "blockperiodseconds": 5,
       "epochlength": 30000,
diff --git a/acceptance-tests/tests/src/test/resources/permissioning/simple_permissioning_v2_genesis.json b/acceptance-tests/tests/src/test/resources/permissioning/simple_permissioning_v2_genesis.json
index 1802856c793..b7ec620f310 100644
--- a/acceptance-tests/tests/src/test/resources/permissioning/simple_permissioning_v2_genesis.json
+++ b/acceptance-tests/tests/src/test/resources/permissioning/simple_permissioning_v2_genesis.json
@@ -1,7 +1,8 @@
 {
   "config": {
     "chainId": 999,
-    "petersburgBlock": 0,
+    "londonBlock": 0,
+    "zeroBaseFee": true,
     "ethash": {
       "fixeddifficulty": 100
     }
diff --git a/ethereum/core/src/main/java/org/hyperledger/besu/ethereum/transaction/TransactionSimulator.java b/ethereum/core/src/main/java/org/hyperledger/besu/ethereum/transaction/TransactionSimulator.java
index 9a76eafee7b..22c4ac4554f 100644
--- a/ethereum/core/src/main/java/org/hyperledger/besu/ethereum/transaction/TransactionSimulator.java
+++ b/ethereum/core/src/main/java/org/hyperledger/besu/ethereum/transaction/TransactionSimulator.java
@@ -28,6 +28,7 @@
 import org.hyperledger.besu.ethereum.core.BlockHeaderBuilder;
 import org.hyperledger.besu.ethereum.core.MutableWorldState;
 import org.hyperledger.besu.ethereum.core.Transaction;
+import org.hyperledger.besu.ethereum.mainnet.ImmutableTransactionValidationParams;
 import org.hyperledger.besu.ethereum.mainnet.MainnetTransactionProcessor;
 import org.hyperledger.besu.ethereum.mainnet.ProtocolSchedule;
 import org.hyperledger.besu.ethereum.mainnet.ProtocolSpec;
@@ -102,7 +103,10 @@ public Optional<TransactionSimulatorResult> process(
   public Optional<TransactionSimulatorResult> processAtHead(final CallParameter callParams) {
     return process(
         callParams,
-        TransactionValidationParams.transactionSimulator(),
+        ImmutableTransactionValidationParams.builder()
+            .from(TransactionValidationParams.transactionSimulator())
+            .isAllowExceedingBalance(true)
+            .build(),
         OperationTracer.NO_TRACING,
         (mutableWorldState, transactionSimulatorResult) -> transactionSimulatorResult,
         blockchain.getChainHeadHeader());