diff --git a/package.json b/package.json
index d9bd27c2..5c93ca78 100644
--- a/package.json
+++ b/package.json
@@ -147,7 +147,7 @@
     "sourcegraph": "^25.7.0",
     "ts-node": "^8.10.2",
     "tslint": "^5.11.0",
-    "typescript": "^4.1.2",
+    "typescript": "^4.9.5",
     "vscode-languageserver-types": "^3.14.0"
   },
   "dependencies": {
diff --git a/yarn.lock b/yarn.lock
index 5d3b1502..784f1252 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -7326,10 +7326,10 @@ typedarray@^0.0.6:
   resolved "https://registry.yarnpkg.com/typedarray/-/typedarray-0.0.6.tgz#867ac74e3864187b1d3d47d996a78ec5c8830777"
   integrity sha1-hnrHTjhkGHsdPUfZlqeOxciDB3c=
 
-typescript@^4.1.2, typescript@^4.6.4:
-  version "4.9.3"
-  resolved "https://registry.yarnpkg.com/typescript/-/typescript-4.9.3.tgz#3aea307c1746b8c384435d8ac36b8a2e580d85db"
-  integrity sha512-CIfGzTelbKNEnLpLdGFgdyKhG23CKdKgQPOBc+OUNrkJ2vr+KSzsSV5kq5iWhEQbok+quxgGzrAtGWCyU7tHnA==
+typescript@^4.6.4, typescript@^4.9.5:
+  version "4.9.5"
+  resolved "https://registry.yarnpkg.com/typescript/-/typescript-4.9.5.tgz#095979f9bcc0d09da324d58d03ce8f8374cbe65a"
+  integrity sha512-1FXk9E2Hm+QzZQ7z+McJiHL4NW1F2EzMu9Nq9i3zAaGqibafqYwCVU6WyWAuyQRRzOlxou8xZSyXLEN8oKj24g==
 
 uglify-js@^3.1.4:
   version "3.10.0"