diff --git a/src/manifest-ff.json b/src/manifest-ff.json
index c6fc64683..b06abc1c8 100644
--- a/src/manifest-ff.json
+++ b/src/manifest-ff.json
@@ -1,6 +1,6 @@
 {
   "manifest_version": 2,
-  "version": "6.4.1",
+  "version": "6.4.2",
   "name": "__MSG_extName__",
   "description": "__MSG_extDescription__",
   "default_locale": "en",
diff --git a/src/manifest.json b/src/manifest.json
index 1d06f6cfe..f3035daa3 100644
--- a/src/manifest.json
+++ b/src/manifest.json
@@ -1,6 +1,6 @@
 {
   "manifest_version": 2,
-  "version": "6.4.1",
+  "version": "6.4.2",
   "name": "__MSG_extName__",
   "description": "__MSG_extDescription__",
   "default_locale": "en",