diff --git a/package.json b/package.json
index 73a9da2..c9b54b7 100644
--- a/package.json
+++ b/package.json
@@ -30,7 +30,7 @@
     "@hapi/hapi": "^21.3.10",
     "@hapi/hoek": "^11.0.4",
     "@hapi/lab": "^25.3.2",
-    "sinon": "^20.0.0"
+    "sinon": "^21.0.0"
   },
   "peerDependencies": {
     "@hapi/hapi": ">= 20.3.0"