diff --git a/package.json b/package.json
index 267aa16..f0b3e70 100644
--- a/package.json
+++ b/package.json
@@ -38,7 +38,7 @@
         "@types/node": "12.12.62",
         "tslint": "6.1.3",
         "tslint-config-prettier": "1.18.0",
-        "typescript": "4.0.3",
+        "typescript": "4.9.5",
         "typedoc": "0.19.2",
         "ts-jest": "26.4.0",
         "jest": "26.4.2",
diff --git a/yarn.lock b/yarn.lock
index 19eccdf..ebda69a 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -5037,10 +5037,10 @@ typeforce@^1.11.5:
   resolved "https://registry.yarnpkg.com/typeforce/-/typeforce-1.18.0.tgz#d7416a2c5845e085034d70fcc5b6cc4a90edbfdc"
   integrity sha512-7uc1O8h1M1g0rArakJdf0uLRSSgFcYexrVoKo+bzJd32gd4gDy2L/Z+8/FjPnU9ydY3pEnVPtr9FyscYY60K1g==
 
-typescript@4.0.3:
-  version "4.0.3"
-  resolved "https://registry.yarnpkg.com/typescript/-/typescript-4.0.3.tgz#153bbd468ef07725c1df9c77e8b453f8d36abba5"
-  integrity sha512-tEu6DGxGgRJPb/mVPIZ48e69xCn2yRmCgYmDugAVwmJ6o+0u1RI18eO7E7WBTLYLaEVVOhwQmcdhQHweux/WPg==
+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 "3.6.3"