diff --git a/package.json b/package.json
index e0079f0..6e850ab 100644
--- a/package.json
+++ b/package.json
@@ -49,7 +49,7 @@
     "husky": "^3.0.0",
     "jest": "^24.1.0",
     "lint-staged": "^10.0.3",
-    "microbundle": "^0.11.0",
+    "microbundle": "^0.12.0",
     "prettier": "^1.10.2"
   },
   "husky": {