diff --git a/source/PluginDev/Assets/GooglePlayGames/Editor/GPGSUpgrader.cs b/source/PluginDev/Assets/GooglePlayGames/Editor/GPGSUpgrader.cs
index 74dcb099c..ba45782f3 100644
--- a/source/PluginDev/Assets/GooglePlayGames/Editor/GPGSUpgrader.cs
+++ b/source/PluginDev/Assets/GooglePlayGames/Editor/GPGSUpgrader.cs
@@ -33,6 +33,8 @@ public class GPGSUpgrader
         /// </summary>
         static GPGSUpgrader()
         {
+            if (EditorApplication.isPlayingOrWillChangePlaymode)
+                return;
             Debug.Log("GPGSUpgrader start");
             string initialVer = GPGSProjectSettings.Instance.Get(GPGSUtil.LASTUPGRADEKEY, "00000");
             if (!initialVer.Equals(PluginVersion.VersionKey))