diff --git a/opacclient/opacapp/build.gradle b/opacclient/opacapp/build.gradle
index ef0bc4329..7896f6fc3 100644
--- a/opacclient/opacapp/build.gradle
+++ b/opacclient/opacapp/build.gradle
@@ -10,8 +10,8 @@ android {
         applicationId "de.geeksfactory.opacclient"
         minSdkVersion 15
         targetSdkVersion 28
-        versionCode 223
-        versionName "6.3.3"
+        versionCode 224
+        versionName "6.3.4"
 
         multiDexEnabled true
         vectorDrawables.useSupportLibrary = true