diff --git a/server/src/test/java/org/opensearch/monitor/fs/FsHealthServiceTests.java b/server/src/test/java/org/opensearch/monitor/fs/FsHealthServiceTests.java
index c51ba9b0612ba..7517e24d555db 100644
--- a/server/src/test/java/org/opensearch/monitor/fs/FsHealthServiceTests.java
+++ b/server/src/test/java/org/opensearch/monitor/fs/FsHealthServiceTests.java
@@ -230,7 +230,7 @@ public void testFailsHealthOnHungIOBeyondHealthyTimeout() throws Exception {
             disruptFileSystemProvider.injectIODelay.set(false);
             waitUntil(
                 () -> fsHealthSrvc.getHealth().getStatus() == HEALTHY,
-                delayBetweenChecks + (3 * refreshInterval),
+                delayBetweenChecks + (4 * refreshInterval),
                 TimeUnit.MILLISECONDS
             );
             fsHealth = fsHealthSrvc.getHealth();