diff --git a/package.json b/package.json
index 55a51f2..76368b3 100644
--- a/package.json
+++ b/package.json
@@ -25,7 +25,7 @@
     "jsonwebtoken": "^7.2.1",
     "minimist": "1.2.0",
     "moment": "2.17.1",
-    "mysql": "^2.12.0",
+    "mysql": "2.15.0",
     "node-lmdb": "0.4.12",
     "promise-mysql": "3.0.0",
     "protocol-buffers": "^3.2.1",