diff --git a/dbg/package.json b/dbg/package.json
index d29bbe3..6ade712 100644
--- a/dbg/package.json
+++ b/dbg/package.json
@@ -72,7 +72,7 @@
         "@rollup/plugin-strip": "^3.0.2",
         "@rollup/plugin-typescript": "^12.3.0",
         "@types/mocha": "^10.0.1",
-        "@types/sinon": "^10.0.11",
+        "@types/sinon": "^21.0.0",
         "cross-env": "^7.0.3",
         "chromium": "^3.0.3",
         "codecov": "^3.8.3",