diff --git a/package.json b/package.json
index 4bcfa28..045789d 100644
--- a/package.json
+++ b/package.json
@@ -79,7 +79,7 @@
     "react-dom": "^16.9.0",
     "react-test-renderer": "^16.12.0",
     "rimraf": "^3.0.0",
-    "sinon": "^8.0.0",
+    "sinon": "^9.0.0",
     "style-loader": "^1.0.0",
     "ts-jest": "^24.2.0",
     "ts-loader": "^6.0.4",