diff --git a/proto-google-cloud-pubsub-v1/clirr-ignored-differences.xml b/proto-google-cloud-pubsub-v1/clirr-ignored-differences.xml
index 7937e7b03..da90cd601 100644
--- a/proto-google-cloud-pubsub-v1/clirr-ignored-differences.xml
+++ b/proto-google-cloud-pubsub-v1/clirr-ignored-differences.xml
@@ -16,4 +16,14 @@
     <className>com/google/pubsub/v1/*OrBuilder</className>
     <method>boolean has*(*)</method>
   </difference>
-</differences>
\ No newline at end of file
+  <difference>
+    <differenceType>7002</differenceType>
+    <className>com/google/pubsub/v1/TopicName</className>
+    <method>java.util.List toStrings(*)</method>
+  </difference>
+  <difference>
+    <differenceType>7002</differenceType>
+    <className>com/google/pubsub/v1/TopicName</className>
+    <method>java.util.List parse(*)</method>
+  </difference>
+</differences>