diff --git a/package.json b/package.json
index 7388650b..e642845f 100644
--- a/package.json
+++ b/package.json
@@ -36,6 +36,7 @@
     "mathjs": "^3.11.5",
     "moment": "^2.18.1",
     "moment-duration-format": "^1.3.0",
+    "pg": "^6.1.5"
     "sequelize": "^3.30.4",
     "superagent": "^3.5.2",
     "zalgolize": "^1.2.4"