diff --git a/package.json b/package.json
index 449fd01..484bed6 100644
--- a/package.json
+++ b/package.json
@@ -54,7 +54,7 @@
     "@types/chai-string": "^1.4.2",
     "@types/dirty-chai": "^2.0.2",
     "@types/mocha": "^7.0.1",
-    "@types/sinon": "^7.5.1",
+    "@types/sinon": "^9.0.0",
     "aegir": "^21.0.2",
     "benchmark": "^2.1.4",
     "chai": "^4.2.0",