diff --git a/node/src/test/kotlin/net/corda/node/services/statemachine/RetryFlowMockTest.kt b/node/src/test/kotlin/net/corda/node/services/statemachine/RetryFlowMockTest.kt
index a092a58de1..e5433b7d31 100644
--- a/node/src/test/kotlin/net/corda/node/services/statemachine/RetryFlowMockTest.kt
+++ b/node/src/test/kotlin/net/corda/node/services/statemachine/RetryFlowMockTest.kt
@@ -87,6 +87,7 @@ class RetryFlowMockTest {
         assertEquals(2, SendAndRetryFlow.count)
     }
 
+    @Ignore("CORDA-4045: Disable flaky test")
     @Test
     fun `Restart does not set senderUUID`() {
         val messagesSent = Collections.synchronizedList(mutableListOf<Message>())