diff --git a/source/SupportLib/PlayGamesPluginSupport/build.gradle b/source/SupportLib/PlayGamesPluginSupport/build.gradle
index 35340ace5..3d2734d56 100644
--- a/source/SupportLib/PlayGamesPluginSupport/build.gradle
+++ b/source/SupportLib/PlayGamesPluginSupport/build.gradle
@@ -97,6 +97,6 @@ uploadArchives {
 
 dependencies {
     implementation 'com.google.android.gms:play-services-games:19.0.0'
-    implementation 'com.google.android.gms:play-services-auth:17.0.0'
+    implementation 'com.google.android.gms:play-services-auth:18.0.0'
     implementation 'com.google.android.gms:play-services-nearby:17.0.0'
 }