diff --git a/package.json b/package.json
index b5fb9918..f457295f 100644
--- a/package.json
+++ b/package.json
@@ -43,6 +43,7 @@
     "multiparty": "^4.2.1",
     "nedb": "^1.8.0",
     "node-forge": "^0.8.4",
+    "semver": "^5.5.0",
     "ws": "^6.2.1",
     "xmldom": "^0.1.27",
     "yauzl": "^2.10.0"