diff --git a/package-lock.json b/package-lock.json
index 2baaf17..25fb3bb 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "boram",
-  "version": "0.5.1-dev",
+  "version": "0.5.1",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
diff --git a/package.json b/package.json
index 200aaab..893a738 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "boram",
-  "version": "0.5.1-dev",
+  "version": "0.5.1",
   "private": true,
   "description": "Cross-platform WebM converter",
   "scripts": {