diff --git a/package.json b/package.json
index b147db1..e9ce4a1 100644
--- a/package.json
+++ b/package.json
@@ -39,7 +39,7 @@
     "eslint-plugin-standard": "^4.0.1",
     "mocha": "^6.2.2",
     "nyc": "^15.0.0",
-    "prettier": "~1.19.1",
+    "prettier": "~2.1.2",
     "unexpected": "^11.0.0",
     "unexpected-snapshot": "^0.7.1"
   }