diff --git a/package.json b/package.json
index ff7914e..354d417 100644
--- a/package.json
+++ b/package.json
@@ -15,6 +15,6 @@
   "devDependencies": {
     "@aptrn/maxmsp-ts": "^0.0.1",
     "@types/maxmsp": "^1.0.13",
-    "typescript": "^5.6.3"
+    "typescript": "^5.9.3"
   }
 }
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index c0dd181..abf072e 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -15,8 +15,8 @@ importers:
         specifier: ^1.0.13
         version: 1.0.14
       typescript:
-        specifier: ^5.6.3
-        version: 5.8.2
+        specifier: ^5.9.3
+        version: 5.9.3
 
 packages:
 
@@ -35,8 +35,8 @@ packages:
     resolution: {integrity: sha512-GDhwkLfywWL2s6vEjyhri+eXmfH6j1L7JE27WhqLeYzoh/A3DBaYGEj2H/HFZCn/kMfim73FXxEJTw06WtxQwg==}
     engines: {node: '>= 14.18.0'}
 
-  typescript@5.8.2:
-    resolution: {integrity: sha512-aJn6wq13/afZp/jT9QZmwEjDqqvSGp1VT5GVg+f/t6/oVyrgXM6BY1h9BRh/O5p3PlUPAe+WuiEZOmb/49RqoQ==}
+  typescript@5.9.3:
+    resolution: {integrity: sha512-jl1vZzPDinLr9eUt3J/t7V6FgNEw9QjvBPdysz9KfQDD41fQrC2Y4vKQdiaUpFT4bXlb1RHhLpp8wtm6M5TgSw==}
     engines: {node: '>=14.17'}
     hasBin: true
 
@@ -54,4 +54,4 @@ snapshots:
 
   readdirp@4.1.2: {}
 
-  typescript@5.8.2: {}
+  typescript@5.9.3: {}