diff --git a/core/src/test/java/org/apache/struts2/interceptor/exec/StrutsBackgroundProcessTest.java b/core/src/test/java/org/apache/struts2/interceptor/exec/StrutsBackgroundProcessTest.java
index 331b5a7a9c..5906c995a6 100644
--- a/core/src/test/java/org/apache/struts2/interceptor/exec/StrutsBackgroundProcessTest.java
+++ b/core/src/test/java/org/apache/struts2/interceptor/exec/StrutsBackgroundProcessTest.java
@@ -112,7 +112,7 @@ public void testMultipleProcesses() throws InterruptedException {
             executor.execute(bp);
         }
 
-        Thread.sleep(500);
+        Thread.sleep(800);
 
         for (BackgroundProcess bp : bps) {
             assertTrue("Process is still active: " + bp, bp.isDone());