diff --git a/aeron-cluster/src/test/java/io/aeron/cluster/TestCluster.java b/aeron-cluster/src/test/java/io/aeron/cluster/TestCluster.java
index <HASH>..<HASH> 100644
--- a/aeron-cluster/src/test/java/io/aeron/cluster/TestCluster.java
+++ b/aeron-cluster/src/test/java/io/aeron/cluster/TestCluster.java
@@ -360,7 +360,7 @@ public class TestCluster implements AutoCloseable
         while (null == (leaderNode = findLeader(skipIndex)))
         {
             TestUtil.checkInterruptedStatus();
-            Thread.sleep(100);
+            Thread.sleep(1000);
         }
 
         return leaderNode;
[Java] Revert sleep from <I> t0 <I>ms when awaiting for leader in TestCluster.