diff --git a/package.json b/package.json
index 325e879..3eb9a15 100644
--- a/package.json
+++ b/package.json
@@ -11,7 +11,7 @@
     "debug": "^3.1.0",
     "for-in": "^1.0.2",
     "mongodb": "^3.0.3",
-    "string-format": "^0.5.0"
+    "string-format": "^1.0.0"
   },
   "devDependencies": {
     "campsi": "^1.0.6",