diff --git a/app/build.gradle b/app/build.gradle
index 060722d9..26d9d195 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -15,8 +15,8 @@ android {
         applicationId "com.simplemobiletools.contacts.pro"
         minSdkVersion 21
         targetSdkVersion 28
-        versionCode 51
-        versionName "6.4.3"
+        versionCode 52
+        versionName "6.4.4"
         setProperty("archivesBaseName", "contacts")
     }