diff --git a/app/build.gradle b/app/build.gradle
index f1a60c833..ba580be9a 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -10,8 +10,8 @@ android {
         applicationId "com.simplemobiletools.calendar"
         minSdkVersion 16
         targetSdkVersion 23
-        versionCode 39
-        versionName "1.39"
+        versionCode 40
+        versionName "1.40"
     }
 
     signingConfigs {