diff --git a/package.json b/package.json
index 1025272..c53fa2f 100644
--- a/package.json
+++ b/package.json
@@ -33,10 +33,6 @@
     "@aureooms/js-functools": "2.0.3",
     "@aureooms/js-itertools": "3.4.0",
     "ava": "3.8.1",
-    "babel-cli": "6.26.0",
-    "babel-polyfill": "6.26.0",
-    "babel-preset-latest": "6.24.1",
-    "codeclimate-test-reporter": "0.5.1",
     "coveralls": "2.13.3",
     "esdoc": "1.1.0",
     "nyc": "15.0.1",