diff --git a/blockchain-tests-skip.yml b/blockchain-tests-skip.yml
index d45f5fbf..384172be 100644
--- a/blockchain-tests-skip.yml
+++ b/blockchain-tests-skip.yml
@@ -687,6 +687,35 @@ filename:
     - TestStoreGasPrices.json # ef-test #139
     - TestContractInteraction.json # ef-test #140
     - RecursiveCreateContractsCreate4Contracts.json # ef-test #141
+  stSystemOperationsTest:
+    - ABAcalls0.json # ef-test #450
+    - ABAcalls1.json # ef-test #450
+    - ABAcalls2.json # ef-test #450
+    - ABAcalls3.json # ef-test #450
+    - ABAcallsSuicide0.json # ef-test #450
+    - Call10.json # ef-test #450
+    - callerAccountBalance.json # ef-test #450
+    - CallRecursiveBomb0.json # ef-test #450
+    - CallRecursiveBomb0_OOG_atMaxCallDepth.json # ef-test #450
+    - CallRecursiveBomb1.json # ef-test #450
+    - CallRecursiveBomb2.json # ef-test #450
+    - CallRecursiveBomb3.json # ef-test #450
+    - CallRecursiveBombLog.json # ef-test #450
+    - CallRecursiveBombLog2.json # ef-test #450
+    - CallToNameRegistratorAddressTooBigRight.json # ef-test #450
+    - PostToReturn1.json # ef-test #450
+    - CreateHashCollision.json # ef-test #451
+    - createNameRegistratorValueTooHigh.json # ef-test #451
+    - createNameRegistratorZeroMem.json # ef-test #451
+    - createNameRegistratorZeroMem2.json # ef-test #451
+    - createNameRegistratorZeroMemExpansion.json # ef-test #451
+    - createWithInvalidOpcode.json # ef-test #451
+    - testRandomTest.json # ef-test #451
+    - doubleSelfdestructTest.json # ef-test #452
+    - extcodecopy.json # ef-test #452
+    - multiSelfdestruct.json # ef-test #452
+    - suicideCallerAddresTooBigRight.json # ef-test #452
+    - suicideNotExistingAccount.json # ef-test #452
   stStaticFlagEnabled:
     - CallcodeToPrecompileFromCalledContract.json # ef-test #443
     - CallcodeToPrecompileFromContractInitialization.json # ef-test #443
diff --git a/crates/ef-testing/tests/tests.rs b/crates/ef-testing/tests/tests.rs
index 80bd7cde..b45c8b20 100644
--- a/crates/ef-testing/tests/tests.rs
+++ b/crates/ef-testing/tests/tests.rs
@@ -125,7 +125,7 @@ mod blockchain_tests {
     blockchain_tests!(st_stack_tests, stStackTests);
     blockchain_tests!(st_static_call, stStaticCall);
     // blockchain_tests!(st_static_flag_enabled, stStaticFlagEnabled); // 13 failing tests
-    // blockchain_tests!(st_system_operations_test, stSystemOperationsTest); // 28 failing tests
+    blockchain_tests!(st_system_operations_test, stSystemOperationsTest);
     // blockchain_tests!(st_time_consuming, stTimeConsuming); // 14 failing tests
     // blockchain_tests!(st_transaction_test, stTransactionTest); // failing due to: invalid length 62, expected a (both 0x-prefixed or not) hex string or byte array containing betwee
     blockchain_tests!(st_transition_test, stTransitionTest);