diff --git a/backend/package-lock.json b/backend/package-lock.json
index b221c41..06c9a6e 100644
--- a/backend/package-lock.json
+++ b/backend/package-lock.json
@@ -98,9 +98,9 @@
       "integrity": "sha1-WQxhFWsK4vTwJVcyoViyZrxWsh0="
     },
     "ejs": {
-      "version": "2.4.2",
-      "resolved": "http://registry.npm.taobao.org/ejs/download/ejs-2.4.2.tgz",
-      "integrity": "sha1-cFfrSBKVj7cxhBzZyjUzQ+/ll7E="
+      "version": "2.5.5",
+      "resolved": "https://registry.npmjs.org/ejs/-/ejs-2.5.5.tgz",
+      "integrity": "sha1-bvTpVOp9z1T2aq0v56pCGTLZ7Xc="
     },
     "escape-html": {
       "version": "1.0.3",
diff --git a/backend/package.json b/backend/package.json
index b7e5037..4a97fb7 100644
--- a/backend/package.json
+++ b/backend/package.json
@@ -9,7 +9,7 @@
     "body-parser": "~1.15.1",
     "cookie-parser": "~1.4.3",
     "debug": "~2.2.0",
-    "ejs": "~2.4.1",
+    "ejs": "~2.5.5",
     "express": "~4.13.4",
     "morgan": "~1.7.0",
     "serve-favicon": "~2.3.0"