diff --git a/core/src/test/java/org/acegisecurity/ui/digestauth/DigestProcessingFilterTests.java b/core/src/test/java/org/acegisecurity/ui/digestauth/DigestProcessingFilterTests.java
index ddb55f6fe9..146abe1a36 100644
--- a/core/src/test/java/org/acegisecurity/ui/digestauth/DigestProcessingFilterTests.java
+++ b/core/src/test/java/org/acegisecurity/ui/digestauth/DigestProcessingFilterTests.java
@@ -144,6 +144,7 @@ public class DigestProcessingFilterTests extends TestCase {
         MockHttpServletResponse response = new MockHttpServletResponse();
 
         // Test
+        Thread.sleep(1000); // ensures token expired
         executeFilterInContainerSimulator(config, filter, request, response,
             chain);