diff --git a/package.json b/package.json
index e93bfa37..be8ced3f 100644
--- a/package.json
+++ b/package.json
@@ -85,7 +85,7 @@
     "url": "git://github.com/gotwarlost/istanbul.git"
   },
   "dependencies": {
-    "esprima": "2.4.x",
+    "esprima": "2.5.x",
     "escodegen": "1.6.x",
     "handlebars": "3.0.0",
     "mkdirp": "0.5.x",