diff --git a/package.json b/package.json
index 378822f..8fa5708 100644
--- a/package.json
+++ b/package.json
@@ -32,7 +32,7 @@
     "lerna": "9.0.7",
     "prettier": "3.8.1",
     "sinon": "21.0.3",
-    "sinon-chai": "3.7.0"
+    "sinon-chai": "4.0.1"
   },
   "scripts": {
     "clean": "lerna clean",
diff --git a/yarn.lock b/yarn.lock
index 0527434..0547a27 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -6384,10 +6384,10 @@ sigstore@^4.0.0:
     "@sigstore/tuf" "^4.0.1"
     "@sigstore/verify" "^3.1.0"
 
-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@4.0.1:
+  version "4.0.1"
+  resolved "https://registry.yarnpkg.com/sinon-chai/-/sinon-chai-4.0.1.tgz#f70000fe0e4f4ab7ceeb3703d3053f8886e0386b"
+  integrity sha512-xMKEEV3cYHC1G+boyr7QEqi80gHznYsxVdC9CdjP5JnCWz/jPGuXQzJz3PtBcb0CcHAxar15Y5sjLBoAs6a0yA==
 
 sinon@21.0.3:
   version "21.0.3"