diff --git a/rewriter/package.json b/rewriter/package.json
index 7a219f2b1ab3..ba753b83fb00 100644
--- a/rewriter/package.json
+++ b/rewriter/package.json
@@ -5,6 +5,6 @@
     "xmldom" : "0.1.17",
     "URIjs" : "1.11.2",
     "readdirp" : "0.3.2",
-    "event-stream" : "3.0.20"
+    "event-stream" : "3.3.5"
   }
 }