diff --git a/package-lock.json b/package-lock.json
index b539d32..27ab632 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -16,7 +16,7 @@
         "@aditosoftware/eslint-config-adito-platform": "*",
         "@types/mocha": "^10.0.8",
         "@types/node": "24.x",
-        "@types/sinon": "^17.0.3",
+        "@types/sinon": "^21.0.0",
         "@types/vscode": "^1.84.0",
         "@vscode/test-cli": "^0.0.12",
         "@vscode/test-electron": "^2.4.1",
@@ -655,9 +655,9 @@
       }
     },
     "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 85d154c..648d6ee 100644
--- a/package.json
+++ b/package.json
@@ -25,7 +25,7 @@
     "@aditosoftware/eslint-config-adito-platform": "latest",
     "@types/mocha": "^10.0.8",
     "@types/node": "24.x",
-    "@types/sinon": "^17.0.3",
+    "@types/sinon": "^21.0.0",
     "@types/vscode": "^1.84.0",
     "@vscode/test-cli": "^0.0.12",
     "@vscode/test-electron": "^2.4.1",