diff --git a/package.json b/package.json
index 3afd3f98c..a246c1a03 100644
--- a/package.json
+++ b/package.json
@@ -87,7 +87,7 @@
     "esbuild": "^0.25.11",
     "ts-node": "^10.9.2",
     "ts-patch": "^3.3.0",
-    "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 c91af3a03..37660275c 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -5309,10 +5309,10 @@ typedoc@^0.25.13:
     minimatch "^9.0.3"
     shiki "^0.14.7"
 
-"typescript@^4.6.4 || ^5.2.2", typescript@^5.4.3, 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@^5.4.3, typescript@^5.9.3:
+  version "5.9.3"
+  resolved "https://registry.yarnpkg.com/typescript/-/typescript-5.9.3.tgz#5b4f59e15310ab17a216f5d6cf53ee476ede670f"
+  integrity sha512-jl1vZzPDinLr9eUt3J/t7V6FgNEw9QjvBPdysz9KfQDD41fQrC2Y4vKQdiaUpFT4bXlb1RHhLpp8wtm6M5TgSw==
 
 unbox-primitive@^1.0.2:
   version "1.0.2"