diff --git a/package.json b/package.json
index cf091b0..90879c5 100644
--- a/package.json
+++ b/package.json
@@ -62,7 +62,7 @@
     "eslint-plugin-flowtype": "^2.29.2",
     "flow-bin": "^0.61.0",
     "mocha": "^5.0.0",
-    "nyc": "^11.0.1",
+    "nyc": "^13.2.0",
     "postcss": "^6.0.7",
     "postcss-modules": "^1.0.0",
     "sinon": "^4.0.1",