diff --git a/package.json b/package.json
index 398cc64..ee2ec09 100644
--- a/package.json
+++ b/package.json
@@ -26,7 +26,7 @@
     "url": "https://github.com/samt/barcode.git"
   },
   "dependencies": {
-    "gm": "1.16.0"
+    "gm": "1.23.1"
   },
   "devDependencies": {
     "mocha": "^1.21.4"