diff --git a/package.json b/package.json
index 76d63dbe..efb8e7f7 100644
--- a/package.json
+++ b/package.json
@@ -40,7 +40,7 @@
     "js-yaml": "4.1.0",
     "prettier": "2.8.8",
     "ts-jest": "27.1.5",
-    "typescript": "3.9.10"
+    "typescript": "5.6.3"
   },
   "dependencies": {
     "@actions/core": "1.9.1",
diff --git a/yarn.lock b/yarn.lock
index e8ecca70..f3ef92d9 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -5491,10 +5491,10 @@ typedarray-to-buffer@^3.1.5:
   dependencies:
     is-typedarray "^1.0.0"
 
-typescript@3.9.10:
-  version "3.9.10"
-  resolved "https://registry.yarnpkg.com/typescript/-/typescript-3.9.10.tgz#70f3910ac7a51ed6bef79da7800690b19bf778b8"
-  integrity sha512-w6fIxVE/H1PkLKcCPsFqKE7Kv7QUwhU8qQY2MueZXWx5cPZdwFupLgKK3vntcK98BtNHZtAF4LA/yl2a7k8R6Q==
+typescript@5.6.3:
+  version "5.6.3"
+  resolved "https://registry.yarnpkg.com/typescript/-/typescript-5.6.3.tgz#5f3449e31c9d94febb17de03cc081dd56d81db5b"
+  integrity sha512-hjcS1mhfuyi4WW8IWtjP7brDrG2cuDZukyrYrSauoXGNgx0S7zceP07adYkJycEr56BOUTNPzbInooiN3fn1qw==
 
 "typescript@^4.6.4 || ^5.2.2":
   version "5.5.4"