diff --git a/dependencymanager/test/src/test/java/org/apache/felix/dm/test/SharingDependenciesWithMultipleServicesTest.java b/dependencymanager/test/src/test/java/org/apache/felix/dm/test/SharingDependenciesWithMultipleServicesTest.java
index 2d4f510..4066d1b 100644
--- a/dependencymanager/test/src/test/java/org/apache/felix/dm/test/SharingDependenciesWithMultipleServicesTest.java
+++ b/dependencymanager/test/src/test/java/org/apache/felix/dm/test/SharingDependenciesWithMultipleServicesTest.java
@@ -98,9 +98,15 @@
         // add the first consumer, and wait until its updated() method is invoked
         m.add(consumer1);
         e.waitForStep(2, 15000);
+        // Avoid bug in CM (FELIX-1545), which may miss some updates
+        sleep(200);
+
         // add the second consumer, and wait until its updated() method is invoked
         m.add(consumer2);
         e.waitForStep(3, 15000);
+        // Avoid bug in CM (FELIX-1545), which may miss some updates
+        sleep(200);
+
         // break down the test again
         m.remove(consumer2);
         m.remove(consumer1);
diff --git a/dependencymanager/test/src/test/java/org/apache/felix/dm/test/annotation/FactoryConfigurationAdapterAnnotationTest.java b/dependencymanager/test/src/test/java/org/apache/felix/dm/test/annotation/FactoryConfigurationAdapterAnnotationTest.java
index 84a684d..8fd54a3 100644
--- a/dependencymanager/test/src/test/java/org/apache/felix/dm/test/annotation/FactoryConfigurationAdapterAnnotationTest.java
+++ b/dependencymanager/test/src/test/java/org/apache/felix/dm/test/annotation/FactoryConfigurationAdapterAnnotationTest.java
@@ -82,13 +82,13 @@
             // Wait for the ServiceProvider activation.
             m_ensure.waitForStep(2, 10000);
             // Avoid bug in CM (FELIX-1545), which may miss some updates
-            sleep(50); 
+            sleep(200); 
             // Update conf
             cf.update(new Hashtable() {{ put("foo", "bar2"); }});            
             // Wait for effective update
             m_ensure.waitForStep(4, 10000);
             // Avoid bug in CM (FELIX-1545), which may miss some updates
-            sleep(50);
+            sleep(200);
             // Remove configuration.
             cf.delete();
             // Check if ServiceProvider has been stopped.