diff --git a/calendar/sync/pom.xml b/calendar/sync/pom.xml
index af98470c..ee8fe7e1 100644
--- a/calendar/sync/pom.xml
+++ b/calendar/sync/pom.xml
@@ -98,7 +98,7 @@
 
     <properties>
         <project.http.version>1.41.0</project.http.version>
-        <project.oauth.version>1.32.1</project.oauth.version>
+        <project.oauth.version>1.39.0</project.oauth.version>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
     </properties>
 </project>