diff --git a/package.json b/package.json
index da7c3122..b355b1e5 100644
--- a/package.json
+++ b/package.json
@@ -40,7 +40,7 @@
     "mocha": "^3.3.0",
     "mocha-lcov-reporter": "^1.3.0",
     "mysql": "^2.13.0",
-    "pg": "^6.1.5",
+    "pg": "^6.4.0",
     "semantic-release": "^6.3.2",
     "semver": "^5.3.0",
     "shelljs": "^0.7.7",