diff --git a/src/handlers/testing/align/util/hono-app.ts b/src/handlers/testing/align/util/hono-app.ts
index a9a05f2..5966d61 100644
--- a/src/handlers/testing/align/util/hono-app.ts
+++ b/src/handlers/testing/align/util/hono-app.ts
@@ -1,11 +1,11 @@
 import { zValidator } from '@hono/zod-validator';
 import { Hono, type Context } from 'hono';
-import { SafeParseReturnType, z } from 'zod';
+import { type ZodError, z } from 'zod';
 import { Language } from './models';
 import { SessionManager } from './session-manager';
 
 const handleValidationResult = (
-  result: SafeParseReturnType<unknown, unknown>,
+  result: { success: boolean; error?: ZodError<unknown> },
   c: Context,
 ) => {
   if (!result.success) {
diff --git a/src/handlers/testing/exec/util/hono-app.ts b/src/handlers/testing/exec/util/hono-app.ts
index 51c09c7..bd9a863 100644
--- a/src/handlers/testing/exec/util/hono-app.ts
+++ b/src/handlers/testing/exec/util/hono-app.ts
@@ -1,6 +1,6 @@
 import { zValidator } from '@hono/zod-validator';
 import { Hono, type Context } from 'hono';
-import { SafeParseReturnType, z } from 'zod';
+import { type ZodError, z } from 'zod';
 import { EventName, emitter } from './emitter';
 import { RunManager } from './run-manager';
 
@@ -23,7 +23,7 @@ export function createHonoApp(runManager: RunManager): Hono {
   });
 
   const handleValidationResult = (
-    result: SafeParseReturnType<unknown, unknown>,
+    result: { success: boolean; error?: ZodError<unknown> },
     c: Context,
   ) => {
     if (!result.success) {