diff --git a/package.json b/package.json
index a02451c..1de174c 100644
--- a/package.json
+++ b/package.json
@@ -30,7 +30,7 @@
     "babel-preset-es2015": "^6.24.1",
     "chai": "^1.10.0",
     "mocha": "~1.x.x",
-    "sinon": "^1.12.2"
+    "sinon": "^19.0.0"
   },
   "babel": {
     "sourceMaps": "inline",