diff --git a/lib/analyze-action-post.js b/lib/analyze-action-post.js
index 7c1ecbeb05..c545c844bd 100644
--- a/lib/analyze-action-post.js
+++ b/lib/analyze-action-post.js
@@ -27689,7 +27689,7 @@ var require_package = __commonJS({
         "@types/node": "20.19.9",
         "@types/node-forge": "^1.3.14",
         "@types/semver": "^7.7.1",
-        "@types/sinon": "^17.0.4",
+        "@types/sinon": "^21.0.0",
         "@typescript-eslint/eslint-plugin": "^8.46.4",
         "@typescript-eslint/parser": "^8.41.0",
         ava: "^6.4.1",
diff --git a/lib/analyze-action.js b/lib/analyze-action.js
index 2a9d16c89c..2869db7ab3 100644
--- a/lib/analyze-action.js
+++ b/lib/analyze-action.js
@@ -27689,7 +27689,7 @@ var require_package = __commonJS({
         "@types/node": "20.19.9",
         "@types/node-forge": "^1.3.14",
         "@types/semver": "^7.7.1",
-        "@types/sinon": "^17.0.4",
+        "@types/sinon": "^21.0.0",
         "@typescript-eslint/eslint-plugin": "^8.46.4",
         "@typescript-eslint/parser": "^8.41.0",
         ava: "^6.4.1",
diff --git a/lib/autobuild-action.js b/lib/autobuild-action.js
index de693821ab..da1bd56d80 100644
--- a/lib/autobuild-action.js
+++ b/lib/autobuild-action.js
@@ -27689,7 +27689,7 @@ var require_package = __commonJS({
         "@types/node": "20.19.9",
         "@types/node-forge": "^1.3.14",
         "@types/semver": "^7.7.1",
-        "@types/sinon": "^17.0.4",
+        "@types/sinon": "^21.0.0",
         "@typescript-eslint/eslint-plugin": "^8.46.4",
         "@typescript-eslint/parser": "^8.41.0",
         ava: "^6.4.1",
diff --git a/lib/init-action-post.js b/lib/init-action-post.js
index c48e9e1424..146f387761 100644
--- a/lib/init-action-post.js
+++ b/lib/init-action-post.js
@@ -27689,7 +27689,7 @@ var require_package = __commonJS({
         "@types/node": "20.19.9",
         "@types/node-forge": "^1.3.14",
         "@types/semver": "^7.7.1",
-        "@types/sinon": "^17.0.4",
+        "@types/sinon": "^21.0.0",
         "@typescript-eslint/eslint-plugin": "^8.46.4",
         "@typescript-eslint/parser": "^8.41.0",
         ava: "^6.4.1",
diff --git a/lib/init-action.js b/lib/init-action.js
index 2c35e5c683..460f1b8c4e 100644
--- a/lib/init-action.js
+++ b/lib/init-action.js
@@ -27689,7 +27689,7 @@ var require_package = __commonJS({
         "@types/node": "20.19.9",
         "@types/node-forge": "^1.3.14",
         "@types/semver": "^7.7.1",
-        "@types/sinon": "^17.0.4",
+        "@types/sinon": "^21.0.0",
         "@typescript-eslint/eslint-plugin": "^8.46.4",
         "@typescript-eslint/parser": "^8.41.0",
         ava: "^6.4.1",
diff --git a/lib/resolve-environment-action.js b/lib/resolve-environment-action.js
index 4059c9db1d..1ffc88a1e4 100644
--- a/lib/resolve-environment-action.js
+++ b/lib/resolve-environment-action.js
@@ -27689,7 +27689,7 @@ var require_package = __commonJS({
         "@types/node": "20.19.9",
         "@types/node-forge": "^1.3.14",
         "@types/semver": "^7.7.1",
-        "@types/sinon": "^17.0.4",
+        "@types/sinon": "^21.0.0",
         "@typescript-eslint/eslint-plugin": "^8.46.4",
         "@typescript-eslint/parser": "^8.41.0",
         ava: "^6.4.1",
diff --git a/lib/setup-codeql-action.js b/lib/setup-codeql-action.js
index 3caba058d5..39c3caedb6 100644
--- a/lib/setup-codeql-action.js
+++ b/lib/setup-codeql-action.js
@@ -27689,7 +27689,7 @@ var require_package = __commonJS({
         "@types/node": "20.19.9",
         "@types/node-forge": "^1.3.14",
         "@types/semver": "^7.7.1",
-        "@types/sinon": "^17.0.4",
+        "@types/sinon": "^21.0.0",
         "@typescript-eslint/eslint-plugin": "^8.46.4",
         "@typescript-eslint/parser": "^8.41.0",
         ava: "^6.4.1",
diff --git a/lib/start-proxy-action-post.js b/lib/start-proxy-action-post.js
index 3c7c444955..6ef944e1e3 100644
--- a/lib/start-proxy-action-post.js
+++ b/lib/start-proxy-action-post.js
@@ -27689,7 +27689,7 @@ var require_package = __commonJS({
         "@types/node": "20.19.9",
         "@types/node-forge": "^1.3.14",
         "@types/semver": "^7.7.1",
-        "@types/sinon": "^17.0.4",
+        "@types/sinon": "^21.0.0",
         "@typescript-eslint/eslint-plugin": "^8.46.4",
         "@typescript-eslint/parser": "^8.41.0",
         ava: "^6.4.1",
diff --git a/lib/start-proxy-action.js b/lib/start-proxy-action.js
index cf0fbd92d1..5fb4b91165 100644
--- a/lib/start-proxy-action.js
+++ b/lib/start-proxy-action.js
@@ -47347,7 +47347,7 @@ var require_package = __commonJS({
         "@types/node": "20.19.9",
         "@types/node-forge": "^1.3.14",
         "@types/semver": "^7.7.1",
-        "@types/sinon": "^17.0.4",
+        "@types/sinon": "^21.0.0",
         "@typescript-eslint/eslint-plugin": "^8.46.4",
         "@typescript-eslint/parser": "^8.41.0",
         ava: "^6.4.1",
diff --git a/lib/upload-lib.js b/lib/upload-lib.js
index dd1c9d3952..813d60f945 100644
--- a/lib/upload-lib.js
+++ b/lib/upload-lib.js
@@ -28986,7 +28986,7 @@ var require_package = __commonJS({
         "@types/node": "20.19.9",
         "@types/node-forge": "^1.3.14",
         "@types/semver": "^7.7.1",
-        "@types/sinon": "^17.0.4",
+        "@types/sinon": "^21.0.0",
         "@typescript-eslint/eslint-plugin": "^8.46.4",
         "@typescript-eslint/parser": "^8.41.0",
         ava: "^6.4.1",
diff --git a/lib/upload-sarif-action-post.js b/lib/upload-sarif-action-post.js
index abb2273e2b..00e6844813 100644
--- a/lib/upload-sarif-action-post.js
+++ b/lib/upload-sarif-action-post.js
@@ -27689,7 +27689,7 @@ var require_package = __commonJS({
         "@types/node": "20.19.9",
         "@types/node-forge": "^1.3.14",
         "@types/semver": "^7.7.1",
-        "@types/sinon": "^17.0.4",
+        "@types/sinon": "^21.0.0",
         "@typescript-eslint/eslint-plugin": "^8.46.4",
         "@typescript-eslint/parser": "^8.41.0",
         ava: "^6.4.1",
diff --git a/lib/upload-sarif-action.js b/lib/upload-sarif-action.js
index 94002fa8f0..39f11e8a02 100644
--- a/lib/upload-sarif-action.js
+++ b/lib/upload-sarif-action.js
@@ -27689,7 +27689,7 @@ var require_package = __commonJS({
         "@types/node": "20.19.9",
         "@types/node-forge": "^1.3.14",
         "@types/semver": "^7.7.1",
-        "@types/sinon": "^17.0.4",
+        "@types/sinon": "^21.0.0",
         "@typescript-eslint/eslint-plugin": "^8.46.4",
         "@typescript-eslint/parser": "^8.41.0",
         ava: "^6.4.1",
diff --git a/package-lock.json b/package-lock.json
index f1a3d294f6..853f3e97c8 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -47,7 +47,7 @@
         "@types/node": "20.19.9",
         "@types/node-forge": "^1.3.14",
         "@types/semver": "^7.7.1",
-        "@types/sinon": "^17.0.4",
+        "@types/sinon": "^21.0.0",
         "@typescript-eslint/eslint-plugin": "^8.46.4",
         "@typescript-eslint/parser": "^8.41.0",
         "ava": "^6.4.1",
@@ -2729,9 +2729,9 @@
       "license": "MIT"
     },
     "node_modules/@types/sinon": {
-      "version": "17.0.4",
-      "resolved": "https://registry.npmjs.org/@types/sinon/-/sinon-17.0.4.tgz",
-      "integrity": "sha512-RHnIrhfPO3+tJT0s7cFaXGZvsL4bbR3/k7z3P312qMS4JaS2Tk+KiwiLx1S0rQ56ERj00u1/BtdyVd0FY+Pdew==",
+      "version": "21.0.0",
+      "resolved": "https://registry.npmjs.org/@types/sinon/-/sinon-21.0.0.tgz",
+      "integrity": "sha512-+oHKZ0lTI+WVLxx1IbJDNmReQaIsQJjN2e7UUrJHEeByG7bFeKJYsv1E75JxTQ9QKJDp21bAa/0W2Xo4srsDnw==",
       "dev": true,
       "license": "MIT",
       "dependencies": {
diff --git a/package.json b/package.json
index 5a3378cead..7f00dfb34f 100644
--- a/package.json
+++ b/package.json
@@ -62,7 +62,7 @@
     "@types/node": "20.19.9",
     "@types/node-forge": "^1.3.14",
     "@types/semver": "^7.7.1",
-    "@types/sinon": "^17.0.4",
+    "@types/sinon": "^21.0.0",
     "@typescript-eslint/eslint-plugin": "^8.46.4",
     "@typescript-eslint/parser": "^8.41.0",
     "ava": "^6.4.1",