diff --git a/package.json b/package.json
index 609fbb2..c72082d 100644
--- a/package.json
+++ b/package.json
@@ -20,7 +20,7 @@
     "istanbul": "^0.4.5",
     "mocha": "^5.2.0",
     "prettier": "^1.14.3",
-    "sinon": "^6.3.5",
+    "sinon": "^7.0.0",
     "unexpected": "^10.27.0",
     "unexpected-sinon": "^10.7.1",
     "unexpected-stream": "^3.0.0"