diff --git a/extension/package.json b/extension/package.json
index fea2a2ae59..19e79f347c 100644
--- a/extension/package.json
+++ b/extension/package.json
@@ -1668,7 +1668,7 @@
     "mock-require": "3.0.3",
     "shx": "0.3.4",
     "sinon": "18.0.0",
-    "sinon-chai": "3.7.0",
+    "sinon-chai": "4.0.0",
     "ts-loader": "9.5.1",
     "vscode-uri": "3.0.8",
     "wdio-vscode-service": "6.1.0",
diff --git a/yarn.lock b/yarn.lock
index 85900d3dd1..3ffc4eb3e4 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -16000,10 +16000,10 @@ simple-get@^4.0.0:
     once "^1.3.1"
     simple-concat "^1.0.0"
 
-sinon-chai@3.7.0:
-  version "3.7.0"
-  resolved "https://registry.yarnpkg.com/sinon-chai/-/sinon-chai-3.7.0.tgz#cfb7dec1c50990ed18c153f1840721cf13139783"
-  integrity sha512-mf5NURdUaSdnatJx3uhoBOrY9dtL19fiOtAdT1Azxg3+lNJFiuN0uzaU3xX1LeAfL17kHQhTAJgpsfhbMJMY2g==
+sinon-chai@4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/sinon-chai/-/sinon-chai-4.0.0.tgz#77d59d9f4a833f0d3a88249b4637acc72656fdfa"
+  integrity sha512-cWqO7O2I4XfJDWyWElAQ9D/dtdh5Mo0RHndsfiiYyjWnlPzBJdIvjCVURO4EjyYaC3BjV+ISNXCfTXPXTEIEWA==
 
 sinon@18.0.0:
   version "18.0.0"