diff --git a/lib/analyze-action-post.js b/lib/analyze-action-post.js
index 705465a74..706105a7f 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 247cf05c8..373b5bbcd 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 8f19b2351..abc46dd80 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 247115938..7e812f392 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 176f6ae35..50d2ebc15 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 a808be3f7..5c6dc080b 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 430b891dd..6862c4bbe 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 3a6c67d2b..8bf22667b 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 2fac0b7c3..45a83e46e 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 a9d8a8f92..5cff5baa7 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 1d1d225ea..4e25e2b82 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 6704bdd07..103e1255c 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 baede9f00..9aacbc446 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",
@@ -2717,9 +2717,9 @@
       "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 d9b512051..a2757b4ae 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",