diff --git a/CHANGELOG.md b/CHANGELOG.md
index cd56f79fc..e455ac4d9 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,12 @@
 Change Log
 ---
 
+### 6.4.3 (2019-01-23)
+
+* Use AlarmManager for notifications
+* Fix notification bug
+* Update Bulgarian translations - ddmdima96
+
 ### 6.4.1 (2019-01-16)
 
 * Limit number of active notifications
diff --git a/app/build.gradle b/app/build.gradle
index 5ed1432cf..c672cb307 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -19,8 +19,8 @@ android {
     defaultConfig {
         testApplicationId "org.tasks.test"
         applicationId "org.tasks"
-        versionCode 548
-        versionName "6.4.1"
+        versionCode 550
+        versionName "6.4.3"
         targetSdkVersion 28
         minSdkVersion 16
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
diff --git a/app/src/main/res/values-bg-rBG/strings.xml b/app/src/main/res/values-bg-rBG/strings.xml
index d7291cd05..c0c7b9047 100644
--- a/app/src/main/res/values-bg-rBG/strings.xml
+++ b/app/src/main/res/values-bg-rBG/strings.xml
@@ -311,6 +311,7 @@
 	<string name="quiet_hours">Тихи часове</string>
 	<string name="attachment_directory">Директория за прикачени файлове</string>
 	<string name="backup_directory">Директория за резервни копия</string>
+	<string name="google_drive_backup">Копирай в Google Drive</string>
 	<string name="miscellaneous">Разни</string>
 	<string name="synchronization">Синхронизация</string>
 	<string name="enabled">Активирано</string>