diff --git a/package.json b/package.json
index bc47d93..67e05c6 100644
--- a/package.json
+++ b/package.json
@@ -16,7 +16,7 @@
     "@types/lodash": "^4.14.123",
     "@types/lolex": "^3.1.1",
     "@types/mocha": "^5.2.6",
-    "@types/sinon": "^7.0.11",
+    "@types/sinon": "^9.0.4",
     "@types/sinon-chai": "^3.2.2",
     "chai": "^4.2.0",
     "concurrently": "^4.1.0",