diff --git a/package.json b/package.json
index 8864a32..e4d6f5d 100644
--- a/package.json
+++ b/package.json
@@ -10,27 +10,27 @@
     "test": "eslint . && mocha --check-leaks -R spec -t 5000 test/*.test.js",
     "test-cov": "istanbul cover _mocha -- --check-leaks -t 5000 test/*.test.js",
     "lint": "eslint .",
-    "autod": "autod -w --prefix '~'",
+    "autod": "autod -w --prefix '^'",
     "contributors": "contributors -f plain -o AUTHORS"
   },
   "dependencies": {
-    "debug": "~2.2.0",
-    "humanize-ms": "~1.0.1",
-    "ini": "~1.3.4",
-    "object-assign": "~4.0.1"
+    "debug": "^2.2.0",
+    "humanize-ms": "^1.2.0",
+    "ini": "^1.3.4",
+    "object-assign": "^4.1.0"
   },
   "devDependencies": {
-    "autod": "*",
-    "beautify-benchmark": "0",
-    "benchmark": "2.0.0",
+    "autod": "2",
+    "beautify-benchmark": "^0.2.4",
+    "benchmark": "^2.1.0",
     "contributors": "*",
     "eslint": "1",
     "istanbul": "*",
-    "koa": "1",
-    "mm": "1",
+    "koa": "^1.2.0",
+    "mm": "^1.3.5",
     "mocha": "*",
-    "pedding": "1",
-    "supertest": "1"
+    "pedding": "^1.0.0",
+    "supertest": "^1.2.0"
   },
   "homepage": "https://github.com/koajs/locales",
   "repository": {