diff --git a/packages/plugin-sdk/package.json b/packages/plugin-sdk/package.json
index 7c44368fbc..5ee6b78cef 100644
--- a/packages/plugin-sdk/package.json
+++ b/packages/plugin-sdk/package.json
@@ -31,7 +31,7 @@
     "@types/node": "^24.12.4",
     "esbuild": "^0.28.0",
     "tsc-alias": "^1.8.16",
-    "typescript": "^5.9.3"
+    "typescript": "^6.0.0"
   },
   "peerDependencies": {
     "@extism/js-pdk": "^1.1.1"
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 6aa01f8ace..49ce35582a 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -348,8 +348,8 @@ importers:
         specifier: ^1.8.16
         version: 1.8.17
       typescript:
-        specifier: ^5.9.3
-        version: 5.9.3
+        specifier: ^6.0.0
+        version: 6.0.3
 
   packages/sdk:
     dependencies: