diff --git a/packages/babel-runtime/package.json b/packages/babel-runtime/package.json
index 49ce712d16..9b6b477940 100644
--- a/packages/babel-runtime/package.json
+++ b/packages/babel-runtime/package.json
@@ -6,10 +6,10 @@
   "repository": "babel/babel",
   "author": "Sebastian McKenzie <sebmck@gmail.com>",
   "dependencies": {
-    "core-js": "^0.9.0"
+    "core-js": "^1.0.0"
   },
   "devDependencies": {
     "babel-plugin-runtime": "^1.0.7",
     "regenerator": "^0.8.34"
   }
-}
\ No newline at end of file
+}
diff --git a/packages/babel/package.json b/packages/babel/package.json
index 8bb33cab32..2c1ed6b3df 100644
--- a/packages/babel/package.json
+++ b/packages/babel/package.json
@@ -46,7 +46,7 @@
     "bluebird": "^2.9.33",
     "chalk": "^1.0.0",
     "convert-source-map": "^1.1.0",
-    "core-js": "^0.9.0",
+    "core-js": "^1.0.0",
     "debug": "^2.1.1",
     "detect-indent": "^3.0.0",
     "esutils": "^2.0.0",