diff --git a/app/build.gradle b/app/build.gradle
index 389757258..9a351e8d6 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -9,8 +9,8 @@ android {
         applicationId "com.simplemobiletools.calendar"
         minSdkVersion 16
         targetSdkVersion 23
-        versionCode 20
-        versionName "1.20"
+        versionCode 21
+        versionName "1.21"
     }
 
     signingConfigs {