diff --git a/package.json b/package.json
index 66603bded..9dfa0e546 100644
--- a/package.json
+++ b/package.json
@@ -121,7 +121,7 @@
     "@sourcegraph/eslint-config": "^0.20.8",
     "@sourcegraph/prettierrc": "^3.0.3",
     "@sourcegraph/tsconfig": "^4.0.1",
-    "@types/mocha": "8.2.2",
+    "@types/mocha": "10.0.10",
     "@types/node": "14.17.3",
     "@types/sinon": "10.0.2",
     "eslint": "^7.28.0",
diff --git a/yarn.lock b/yarn.lock
index feaf45949..3b4637fea 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1207,10 +1207,10 @@
   resolved "https://registry.yarnpkg.com/@types/json5/-/json5-0.0.29.tgz#ee28707ae94e11d2b827bcbe5270bcea7f3e71ee"
   integrity sha1-7ihweulOEdK4J7y+UnC86n8+ce4=
 
-"@types/mocha@8.2.2":
-  version "8.2.2"
-  resolved "https://registry.yarnpkg.com/@types/mocha/-/mocha-8.2.2.tgz#91daa226eb8c2ff261e6a8cbf8c7304641e095e0"
-  integrity sha512-Lwh0lzzqT5Pqh6z61P3c3P5nm6fzQK/MMHl9UKeneAeInVflBSz1O2EkX6gM6xfJd7FBXBY5purtLx7fUiZ7Hw==
+"@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@14.17.3":
   version "14.17.3"