diff --git a/package.json b/package.json
index 6bfb308..5788cf3 100644
--- a/package.json
+++ b/package.json
@@ -40,7 +40,7 @@
     "husky": "4.3.6",
     "tsdx": "0.14.1",
     "tslib": "2.2.0",
-    "typescript": "4.4.3"
+    "typescript": "4.8.4"
   },
   "dependencies": {
     "@slack/webhook": "^6.0.0",
diff --git a/yarn.lock b/yarn.lock
index e1f6b45..aaf8e59 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -5968,10 +5968,10 @@ typedarray-to-buffer@^3.1.5:
   dependencies:
     is-typedarray "^1.0.0"
 
-typescript@4.4.3:
-  version "4.4.3"
-  resolved "https://registry.yarnpkg.com/typescript/-/typescript-4.4.3.tgz#bdc5407caa2b109efd4f82fe130656f977a29324"
-  integrity sha512-4xfscpisVgqqDfPaJo5vkd+Qd/ItkoagnHpufr+i2QCHBsNYp+G7UAoyFl8aPtx879u38wPV65rZ8qbGZijalA==
+typescript@4.8.4:
+  version "4.8.4"
+  resolved "https://registry.yarnpkg.com/typescript/-/typescript-4.8.4.tgz#c464abca159669597be5f96b8943500b238e60e6"
+  integrity sha512-QCh+85mCy+h0IGff8r5XWzOVSbBO+KfeYrMQh7NJ58QujwcE22u+NUSmUxqF+un70P9GXKxa2HCNiTTMJknyjQ==
 
 typescript@^3.7.3:
   version "3.9.7"