diff --git a/package-lock.json b/package-lock.json
index 967a316a..10995604 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -49,7 +49,7 @@
         "ramda": "=0.31.3",
         "ramda-adjunct": "=5.1.0",
         "rimraf": "6.0.1",
-        "sinon": "20.0.0",
+        "sinon": "21.0.0",
         "terser-webpack-plugin": "5.3.14",
         "testem": "3.16.0",
         "tslint": "=6.1.3",
@@ -12737,9 +12737,9 @@
       "dev": true
     },
     "node_modules/sinon": {
-      "version": "20.0.0",
-      "resolved": "https://registry.npmjs.org/sinon/-/sinon-20.0.0.tgz",
-      "integrity": "sha512-+FXOAbdnj94AQIxH0w1v8gzNxkawVvNqE3jUzRLptR71Oykeu2RrQXXl/VQjKay+Qnh73fDt/oDfMo6xMeDQbQ==",
+      "version": "21.0.0",
+      "resolved": "https://registry.npmjs.org/sinon/-/sinon-21.0.0.tgz",
+      "integrity": "sha512-TOgRcwFPbfGtpqvZw+hyqJDvqfapr1qUlOizROIk4bBLjlsjlB00Pg6wMFXNtJRpu+eCZuVOaLatG7M8105kAw==",
       "dev": true,
       "license": "BSD-3-Clause",
       "dependencies": {
diff --git a/package.json b/package.json
index 99bfc7c5..bf5131dc 100644
--- a/package.json
+++ b/package.json
@@ -124,7 +124,7 @@
     "ramda": "=0.31.3",
     "ramda-adjunct": "=5.1.0",
     "rimraf": "6.0.1",
-    "sinon": "20.0.0",
+    "sinon": "21.0.0",
     "terser-webpack-plugin": "5.3.14",
     "testem": "3.16.0",
     "tslint": "=6.1.3",