diff --git a/package.json b/package.json
index 6da88b7..062f7f9 100644
--- a/package.json
+++ b/package.json
@@ -30,7 +30,7 @@
     "@aureooms/js-itertools": "^3.1.1",
     "ava": "^0.19.1",
     "babel-cli": "^6.18.0",
-    "babel-polyfill": "^6.20.0",
+    "babel-polyfill": "^6.26.0",
     "babel-preset-latest": "^6.16.0",
     "codeclimate-test-reporter": "^0.4.0",
     "coveralls": "^2.11.15",