diff --git a/package.json b/package.json
index 20e3ad1..2b9dfb0 100644
--- a/package.json
+++ b/package.json
@@ -24,7 +24,7 @@
     "babel-eslint": "^8.0.3",
     "detect-eslint-config": "^0.5.6",
     "eslint-rule-documentation": "^1.0.9",
-    "esprima": "^3.1.1",
+    "esprima": "^4.0.0",
     "happiness": "^10.0.2",
     "ignore": "^3.3.5",
     "loophole": "^1.1.0",