diff --git a/package.json b/package.json
index 4b4dfe8..64b9198 100644
--- a/package.json
+++ b/package.json
@@ -26,17 +26,17 @@
   "homepage": "https://github.com/yosuke-furukawa/espower-traceur",
   "dependencies": {
     "convert-source-map": "^0.4.1",
-    "espower-source": "^0.10.0",
+    "espower-source": "^1.0.0",
     "minimatch": "^1.0.0",
     "traceur": "0.0.74",
     "xtend": "^4.0.0"
   },
   "devDependencies": {
-    "empower": "^0.10.0",
+    "empower": "^1.0.0",
     "expect.js": "^0.3.1",
     "jshint": "^2.5.10",
     "mocha": "^2.0.1",
-    "power-assert": "^0.10.0",
-    "power-assert-formatter": "^0.10.1"
+    "power-assert": "^1.0.0",
+    "power-assert-formatter": "^1.0.0"
   }
 }