diff --git a/packages/player-web-demo/package.json b/packages/player-web-demo/package.json
index 279f130f..115ff758 100644
--- a/packages/player-web-demo/package.json
+++ b/packages/player-web-demo/package.json
@@ -25,7 +25,7 @@
     "lil-gui": "^0.21.0"
   },
   "devDependencies": {
-    "@cloudflare/workers-types": "^5.20260820.1",
+    "@cloudflare/workers-types": "^5.20260827.1",
     "ts-ebml": "^3.0.2",
     "vite": "^8.2.1",
     "vite-plugin-node-polyfills": "^0.28.0",
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 2b00b46c..0395f6e0 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -265,8 +265,8 @@ importers:
         version: 0.21.0
     devDependencies:
       '@cloudflare/workers-types':
-        specifier: ^5.20260820.1
-        version: 5.20260820.1
+        specifier: ^5.20260827.1
+        version: 5.20260827.1
       ts-ebml:
         specifier: ^3.0.2
         version: 3.0.2
@@ -278,7 +278,7 @@ importers:
         version: 0.28.0(rollup@4.59.0)(vite@8.2.1(@types/node@26.2.0)(esbuild@0.28.1)(tsx@4.23.12)(yaml@2.9.0))
       wrangler:
         specifier: ^4.124.0
-        version: 4.124.0(@cloudflare/workers-types@5.20260820.1)
+        version: 4.124.0(@cloudflare/workers-types@5.20260827.1)
 
   packages/stringifier:
     dependencies:
@@ -439,8 +439,8 @@ packages:
     cpu: [x64]
     os: [win32]
 
-  '@cloudflare/workers-types@5.20260820.1':
-    resolution: {integrity: sha512-KFRmtV4toMf1LL2yXylFTIs7YAS1IYo6jrJCneBG8I1VXHcKCIdqPROH6lGum+gZ+ZgdcNZqxDgjM1yEMgma2w==}
+  '@cloudflare/workers-types@5.20260827.1':
+    resolution: {integrity: sha512-L5wIIHcgy67AAfe8nNmfcRHLBtO+2jva14zx1HxH2tunlteNmQvo4nYtcfef1n1MKXu3Z3xB98Fvl1BorkjFtg==}
 
   '@cspotcode/source-map-support@0.8.1':
     resolution: {integrity: sha512-IchNf6dN4tHoMFIn/7OE8LWZ19Y6q/67Bmf6vnGREv8RSbBVb9LPJxEcnwrcwX6ixSvaiGoomAUvu4YSxXrVgw==}
@@ -3277,7 +3277,7 @@ snapshots:
   '@cloudflare/workerd-windows-64@1.20260815.1':
     optional: true
 
-  '@cloudflare/workers-types@5.20260820.1': {}
+  '@cloudflare/workers-types@5.20260827.1': {}
 
   '@cspotcode/source-map-support@0.8.1':
     dependencies:
@@ -5533,7 +5533,7 @@ snapshots:
       '@cloudflare/workerd-linux-arm64': 1.20260815.1
       '@cloudflare/workerd-windows-64': 1.20260815.1
 
-  wrangler@4.124.0(@cloudflare/workers-types@5.20260820.1):
+  wrangler@4.124.0(@cloudflare/workers-types@5.20260827.1):
     dependencies:
       '@cloudflare/kv-asset-handler': 0.5.0
       '@cloudflare/unenv-preset': 2.16.1(unenv@2.0.0-rc.24)(workerd@1.20260815.1)
@@ -5544,7 +5544,7 @@ snapshots:
       unenv: 2.0.0-rc.24
       workerd: 1.20260815.1
     optionalDependencies:
-      '@cloudflare/workers-types': 5.20260820.1
+      '@cloudflare/workers-types': 5.20260827.1
       fsevents: 2.3.3
     transitivePeerDependencies:
       - bufferutil