diff --git a/package.json b/package.json
index 139d23a2..dc5ecf3e 100644
--- a/package.json
+++ b/package.json
@@ -33,7 +33,7 @@
     "oclif": "^4.22.38",
     "sinon-chai": "^3.7.0",
     "ts-node": "^10.9.2",
-    "typescript": "^5.5.4"
+    "typescript": "^5.9.3"
   },
   "resolutions": {
     "@jsforce/jsforce-node/node-fetch/whatwg-url": "^14.0.0"
diff --git a/yarn.lock b/yarn.lock
index f3b9adf5..bea02005 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -7825,10 +7825,10 @@ typedoc@^0.26.5:
     shiki "^1.9.1"
     yaml "^2.4.5"
 
-"typescript@^4.6.4 || ^5.2.2", typescript@^5.5.4:
-  version "5.5.4"
-  resolved "https://registry.yarnpkg.com/typescript/-/typescript-5.5.4.tgz#d9852d6c82bad2d2eda4fd74a5762a8f5909e9ba"
-  integrity sha512-Mtq29sKDAEYP7aljRgtPOpTvOfbwRWlS6dPRzwjdE+C0R4brX/GUyhHSecbHMFLNBLcJIPt9nl9yG5TZ1weH+Q==
+"typescript@^4.6.4 || ^5.2.2", typescript@^5.5.4, typescript@^5.9.3:
+  version "5.9.3"
+  resolved "https://registry.yarnpkg.com/typescript/-/typescript-5.9.3.tgz#5b4f59e15310ab17a216f5d6cf53ee476ede670f"
+  integrity sha512-jl1vZzPDinLr9eUt3J/t7V6FgNEw9QjvBPdysz9KfQDD41fQrC2Y4vKQdiaUpFT4bXlb1RHhLpp8wtm6M5TgSw==
 
 typescript@~5.4.2:
   version "5.4.5"