diff --git a/bundles/org.eclipse.e4.tools.emf.ui/forceQualifierUpdate.txt b/bundles/org.eclipse.e4.tools.emf.ui/forceQualifierUpdate.txt
index 983f2c1..d973fee 100644
--- a/bundles/org.eclipse.e4.tools.emf.ui/forceQualifierUpdate.txt
+++ b/bundles/org.eclipse.e4.tools.emf.ui/forceQualifierUpdate.txt
@@ -2,3 +2,4 @@
 Bug 403237 - o.e.e4.tools cannot be build with "mvn clean install"
 Bug 463856 - Trouble doing an I-build of org.eclipse.e4.core.tools.feature
 Bug 491534 - comparator error in org.eclipse.e4.tools.emf.ui
+Bug 534597 - Unanticipated comparator errors in I20180511-2000
\ No newline at end of file
diff --git a/bundles/org.eclipse.e4.tools.services/forceQualifierUpdate.txt b/bundles/org.eclipse.e4.tools.services/forceQualifierUpdate.txt
index dd589f1..eff8570 100644
--- a/bundles/org.eclipse.e4.tools.services/forceQualifierUpdate.txt
+++ b/bundles/org.eclipse.e4.tools.services/forceQualifierUpdate.txt
@@ -1,4 +1,5 @@
 # To force a version qualifier update add the bug here
 Bug 403237 - o.e.e4.tools cannot be build with "mvn clean install"
 Bug 463856 - Trouble doing an I-build of org.eclipse.e4.core.tools.feature
-Bug 509973 - Comparator errors in I20170105-0320
\ No newline at end of file
+Bug 509973 - Comparator errors in I20170105-0320
+Bug 534597 - Unanticipated comparator errors in I20180511-2000
\ No newline at end of file