diff --git a/app/assets/javascripts/discourse/package.json b/app/assets/javascripts/discourse/package.json
index 95a630526ea..6e6b74480e6 100644
--- a/app/assets/javascripts/discourse/package.json
+++ b/app/assets/javascripts/discourse/package.json
@@ -89,7 +89,7 @@
     "qunit-dom": "^2.0.0",
     "sass": "^1.56.1",
     "select-kit": "1.0.0",
-    "sinon": "^14.0.2",
+    "sinon": "^15.0.0",
     "source-map": "^0.7.4",
     "terser": "^5.16.0",
     "tippy.js": "^6.3.7",
diff --git a/app/assets/javascripts/yarn.lock b/app/assets/javascripts/yarn.lock
index dc518242481..1779bf784e0 100644
--- a/app/assets/javascripts/yarn.lock
+++ b/app/assets/javascripts/yarn.lock
@@ -8391,10 +8391,10 @@ simple-html-tokenizer@^0.5.11:
   resolved "https://registry.yarnpkg.com/simple-html-tokenizer/-/simple-html-tokenizer-0.5.11.tgz#4c5186083c164ba22a7b477b7687ac056ad6b1d9"
   integrity sha512-C2WEK/Z3HoSFbYq8tI7ni3eOo/NneSPRoPpcM7WdLjFOArFuyXEjAoCdOC3DgMfRyziZQ1hCNR4mrNdWEvD0og==
 
-sinon@^14.0.2:
-  version "14.0.2"
-  resolved "https://registry.yarnpkg.com/sinon/-/sinon-14.0.2.tgz#585a81a3c7b22cf950762ac4e7c28eb8b151c46f"
-  integrity sha512-PDpV0ZI3ZCS3pEqx0vpNp6kzPhHrLx72wA0G+ZLaaJjLIYeE0n8INlgaohKuGy7hP0as5tbUd23QWu5U233t+w==
+sinon@^15.0.0:
+  version "15.0.0"
+  resolved "https://registry.yarnpkg.com/sinon/-/sinon-15.0.0.tgz#651a641b45c0a57aabc8275343c7108cffc9c062"
+  integrity sha512-pV97G1GbslaSJoSdy2F2z8uh5F+uPGp3ddOzA4JsBOUBLEQRz2OAqlKGRFTSh2KiqUCmHkzyAeu7R4x1Hx0wwg==
   dependencies:
     "@sinonjs/commons" "^2.0.0"
     "@sinonjs/fake-timers" "^9.1.2"