diff --git a/package.json b/package.json
index ad7b378..edf37f1 100644
--- a/package.json
+++ b/package.json
@@ -31,6 +31,6 @@
     "@typescript-eslint/parser": "4.22.0",
     "ava": "3.15.0",
     "eslint": "7.25.0",
-    "typescript": "4.2.4"
+    "typescript": "4.9.5"
   }
 }
diff --git a/yarn.lock b/yarn.lock
index 5c15b35..403877e 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2307,10 +2307,10 @@ typedarray-to-buffer@^3.1.5:
   dependencies:
     is-typedarray "^1.0.0"
 
-typescript@4.2.4:
-  version "4.2.4"
-  resolved "https://registry.yarnpkg.com/typescript/-/typescript-4.2.4.tgz#8610b59747de028fda898a8aef0e103f156d0961"
-  integrity sha512-V+evlYHZnQkaz8TRBuxTA92yZBPotr5H+WhQ7bD3hZUndx5tGOa1fuCgeSjxAzM1RiN5IzvadIXTVefuuwZCRg==
+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==
 
 unique-string@^2.0.0:
   version "2.0.0"