diff --git a/package.json b/package.json
index 83c2d3e9..eed0e4c0 100644
--- a/package.json
+++ b/package.json
@@ -43,7 +43,7 @@
     "@types/extend": "^3.0.4",
     "@types/mocha": "^10.0.10",
     "@types/node": "^22.13.14",
-    "@types/sinon": "^17.0.4",
+    "@types/sinon": "^21.0.0",
     "@types/uuid": "^10.0.0",
     "avsc": "^5.7.9",
     "c8": "^10.1.3",