diff --git a/app.ts b/app.ts
index d5e55801f..2b8054a81 100755
--- a/app.ts
+++ b/app.ts
@@ -611,7 +611,7 @@ async function main() {
         process.exit(0);
     }
 
-    const healthCheckFilePath = ceProps('healthCheckFilePath', false);
+    const healthCheckFilePath = ceProps('healthCheckFilePath', false) as string | false;
 
     // Exported to allow compilers to refer to other existing compilers.
     global.handler_config = {
diff --git a/lib/handlers/health-check.ts b/lib/handlers/health-check.ts
index f64fcdf6f..95071a90f 100644
--- a/lib/handlers/health-check.ts
+++ b/lib/handlers/health-check.ts
@@ -32,11 +32,11 @@ import {SentryCapture} from '../sentry.js';
 import {ICompileHandler} from './compile.interfaces.js';
 
 export class HealthCheckHandler {
-    public readonly handle: (req: any, res: any) => Promise<void>;
+    public readonly handle: (req: express.Request, res: express.Response) => Promise<void>;
 
     constructor(
         private readonly compilationQueue: CompilationQueue,
-        private readonly filePath: any,
+        private readonly filePath: string | false,
         private readonly compileHandler: ICompileHandler,
         private readonly isExecutionWorker: boolean,
     ) {