diff --git a/app/build.gradle b/app/build.gradle
index ac072320c..eb065b609 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -34,8 +34,8 @@ android {
         applicationId "com.geeksville.mesh"
         minSdkVersion 21 // The oldest emulator image I have tried is 22 (though 21 probably works)
         targetSdkVersion 31
-        versionCode 30120 // format is Mmmss (where M is 1+the numeric major number
-        versionName "2.1.20"
+        versionCode 30121 // format is Mmmss (where M is 1+the numeric major number
+        versionName "2.1.21"
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
 
         // per https://developer.android.com/studio/write/vector-asset-studio