diff --git a/package.json b/package.json
index d9bd27c2..6b5cfb77 100644
--- a/package.json
+++ b/package.json
@@ -129,7 +129,7 @@
     "@sourcegraph/tslint-config": "^13.4.0",
     "@types/expect": "1.20.4",
     "@types/lodash": "4.17.13",
-    "@types/mocha": "9.1.1",
+    "@types/mocha": "10.0.10",
     "@types/node": "22.10.1",
     "@types/sinon": "17.0.3",
     "expect": "^24.1.0",
diff --git a/yarn.lock b/yarn.lock
index 5d3b1502..328ca4be 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1151,10 +1151,10 @@
   resolved "https://registry.yarnpkg.com/@types/minimist/-/minimist-1.2.2.tgz#ee771e2ba4b3dc5b372935d549fd9617bf345b8c"
   integrity sha512-jhuKLIRrhvCPLqwPcx6INqmKeiA5EWrsCOPhrlFSrbrmU4ZMPjj5Ul/oLCMDO98XRUIwVm78xICz4EPCektzeQ==
 
-"@types/mocha@9.1.1":
-  version "9.1.1"
-  resolved "https://registry.yarnpkg.com/@types/mocha/-/mocha-9.1.1.tgz#e7c4f1001eefa4b8afbd1eee27a237fee3bf29c4"
-  integrity sha512-Z61JK7DKDtdKTWwLeElSEBcWGRLY8g95ic5FoQqI9CMx0ns/Ghep3B4DfcEimiKMvtamNVULVNKEsiwV3aQmXw==
+"@types/mocha@10.0.10":
+  version "10.0.10"
+  resolved "https://registry.yarnpkg.com/@types/mocha/-/mocha-10.0.10.tgz#91f62905e8d23cbd66225312f239454a23bebfa0"
+  integrity sha512-xPyYSz1cMPnJQhl0CLMH68j3gprKZaTjG3s5Vi+fDgx+uhG9NOXwbVt52eFS8ECyXhyKcjDLCBEqBExKuiZb7Q==
 
 "@types/node@22.10.1":
   version "22.10.1"