diff --git a/package.json b/package.json
index ad7b378..eb21ddf 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": "4.9.3"
   }
 }
diff --git a/yarn.lock b/yarn.lock
index 5c15b35..8ee81db 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@4.9.3:
+  version "4.9.3"
+  resolved "https://registry.yarnpkg.com/typescript/-/typescript-4.9.3.tgz#3aea307c1746b8c384435d8ac36b8a2e580d85db"
+  integrity sha512-CIfGzTelbKNEnLpLdGFgdyKhG23CKdKgQPOBc+OUNrkJ2vr+KSzsSV5kq5iWhEQbok+quxgGzrAtGWCyU7tHnA==
 
 unique-string@^2.0.0:
   version "2.0.0"