diff --git a/package-lock.json b/package-lock.json
index a2d51f0..cabc66f 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -34,6 +34,7 @@
         "tw-animate-css": "^1.4.0"
       },
       "devDependencies": {
+        "@cloudflare/workers-types": "^4.20260403.1",
         "@types/react": "^19.2.14"
       }
     },
@@ -813,6 +814,14 @@
         "node": ">=16"
       }
     },
+    "node_modules/@cloudflare/workers-types": {
+      "version": "4.20260403.1",
+      "resolved": "https://registry.npmjs.org/@cloudflare/workers-types/-/workers-types-4.20260403.1.tgz",
+      "integrity": "sha512-p6oSNt3yUwcxSoXZ7qCog7+kgQbkSx1Beoci7TMb/xbRF05VR0cO/p1XUE2SLHZ7IgSIc3tNMpFKa0L0fa3Lzg==",
+      "devOptional": true,
+      "license": "MIT OR Apache-2.0",
+      "peer": true
+    },
     "node_modules/@cspotcode/source-map-support": {
       "version": "0.8.1",
       "resolved": "https://registry.npmjs.org/@cspotcode/source-map-support/-/source-map-support-0.8.1.tgz",
diff --git a/package.json b/package.json
index 939cf05..352afb7 100644
--- a/package.json
+++ b/package.json
@@ -35,6 +35,7 @@
     "tw-animate-css": "^1.4.0"
   },
   "devDependencies": {
+    "@cloudflare/workers-types": "^4.20260403.1",
     "@types/react": "^19.2.14"
   }
 }
diff --git a/src/pages/api/contact.ts b/src/pages/api/contact.ts
index 694c971..eb898ff 100644
--- a/src/pages/api/contact.ts
+++ b/src/pages/api/contact.ts
@@ -1,4 +1,5 @@
 import type { APIRoute } from 'astro';
+import { env } from 'cloudflare:workers';
 import { sendEmail } from '@/lib/email';
 import general from '@/content/settings/general.json';
 
@@ -70,7 +71,7 @@ function buildContactNotificationHtml(data: ContactBody): string {
 </html>`;
 }
 
-export const POST: APIRoute = async ({ request, locals }) => {
+export const POST: APIRoute = async ({ request }) => {
   let body: unknown;
   try {
     body = await request.json();
@@ -88,8 +89,7 @@ export const POST: APIRoute = async ({ request, locals }) => {
     });
   }
 
-  const runtime = (locals as { runtime?: { env?: Record<string, string> } }).runtime;
-  const apiKey = runtime?.env?.RESEND_API_KEY;
+  const apiKey = (env as unknown as Record<string, string>).RESEND_API_KEY;
   const toAddress = general.emailToContact?.trim();
   const fromAddress = general.emailFromContact?.trim();
   if (!apiKey || !toAddress || !fromAddress) {
diff --git a/src/pages/api/submission.ts b/src/pages/api/submission.ts
index 0d932fa..345d7cf 100644
--- a/src/pages/api/submission.ts
+++ b/src/pages/api/submission.ts
@@ -1,4 +1,5 @@
 import type { APIRoute } from 'astro';
+import { env } from 'cloudflare:workers';
 import type { EmailAttachment } from '@/lib/email';
 import { sendEmail } from '@/lib/email';
 import general from '@/content/settings/general.json';
@@ -143,7 +144,7 @@ function buildNotificationHtml(data: SubmissionPayload, attachmentNames: string[
 </html>`;
 }
 
-export const POST: APIRoute = async ({ request, locals }) => {
+export const POST: APIRoute = async ({ request }) => {
   const contentType = request.headers.get('content-type') ?? '';
   if (!contentType.includes('multipart/form-data')) {
     return new Response(JSON.stringify({ success: false, error: 'Invalid Content-Type.' }), {
@@ -213,8 +214,7 @@ export const POST: APIRoute = async ({ request, locals }) => {
     });
   }
 
-  const runtime = (locals as { runtime?: { env?: Record<string, string> } }).runtime;
-  const apiKey = runtime?.env?.RESEND_API_KEY;
+  const apiKey = (env as unknown as Record<string, string>).RESEND_API_KEY;
   const fromAddress = general.fromAddressSubmission?.trim();
   const toAddress = general.toAddressSubmission?.trim();
 
diff --git a/tsconfig.json b/tsconfig.json
index 948ca4c..0853aa6 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -5,7 +5,8 @@
     "paths": {
       "@/*": ["src/*"]
     },
-      "jsx": "react-jsx",
-      "jsxImportSource": "react"
+    "types": ["@cloudflare/workers-types"],
+    "jsx": "react-jsx",
+    "jsxImportSource": "react"
   }
 }