diff --git a/package.json b/package.json
index c62a301..7ec2bdb 100644
--- a/package.json
+++ b/package.json
@@ -21,7 +21,7 @@
         "ci": "npm run lint && npm run test",
         "coverage": "nyc report --reporter=text-lcov | coveralls"
     },
-    "devDependencies": {
+    "dependencies": {
         "coveralls": "3.0.2",
         "eslint": "5.13.0",
         "eslint-config-futagozaryuu": "5.6.1",
diff --git a/tools/bundler/package.json b/tools/bundler/package.json
index 05a4129..789f800 100644
--- a/tools/bundler/package.json
+++ b/tools/bundler/package.json
@@ -5,7 +5,7 @@
     "bin": {
         "bundle": "bundler.js"
     },
-    "devDependencies": {
+    "dependencies": {
         "@babel/core": "7.2.2",
         "@babel/preset-env": "7.3.1",
         "@futagoza/child-process": "1.0.0",