diff --git a/package.json b/package.json
index 793b018..23235f8 100644
--- a/package.json
+++ b/package.json
@@ -55,7 +55,7 @@
     "babelify": "^7.3.0",
     "chai": "^3.5.0",
     "chai-as-promised": "^5.3.0",
-    "image-size": "0.3.5",
+    "image-size": "npm:image-size-next@1.2.2",
     "mocha": "^2.5.3",
     "testdouble": "^1.4.3"
   }