diff --git a/package.json b/package.json
index 8c154ca..710e198 100644
--- a/package.json
+++ b/package.json
@@ -16,7 +16,7 @@
     "optipng": "=0.0.5",
     "passerror": "=0.0.1",
     "pngcrush": "=0.0.4",
-    "pngquant": "=0.1.2"
+    "pngquant": "=0.1.3"
   },
   "optionalDependencies": {
     "svgfilter": "=0.3.1"