diff --git a/resources/views/admin/contractor/list.blade.php b/resources/views/admin/contractor/list.blade.php
index 08bd0fd..3fc7fc6 100644
--- a/resources/views/admin/contractor/list.blade.php
+++ b/resources/views/admin/contractor/list.blade.php
@@ -307,7 +307,7 @@
                   <td>
                     {{-- 契約日を「yyyymmdd」形式で表示する --}}
                     {{ $row->contract_created_at 
-                        ? \Illuminate\Support\Carbon::parse($row->contract_created_at)->format('Ymd') 
+                        ? \Illuminate\Support\Carbon::parse($row->contract_created_at)->format('Y-m-d') 
                         : '' }}
                   </td>
                   <td>
diff --git a/resources/views/admin/contractor_list/list.blade.php b/resources/views/admin/contractor_list/list.blade.php
index d2719ff..8e2e9ae 100644
--- a/resources/views/admin/contractor_list/list.blade.php
+++ b/resources/views/admin/contractor_list/list.blade.php
@@ -322,7 +322,7 @@
                   <td>
                     {{-- 契約日を「yyyymmdd」形式で表示する --}}
                     {{ $row->contract_created_at 
-                        ? \Illuminate\Support\Carbon::parse($row->contract_created_at)->format('Ymd') 
+                        ? \Illuminate\Support\Carbon::parse($row->contract_created_at)->format('Y-m-d') 
                         : '' }}
                   </td>
                   <td>
diff --git a/resources/views/admin/update_candidate/list.blade.php b/resources/views/admin/update_candidate/list.blade.php
index ca6bd39..30a21e1 100644
--- a/resources/views/admin/update_candidate/list.blade.php
+++ b/resources/views/admin/update_candidate/list.blade.php
@@ -231,7 +231,12 @@
             <td>{{ $row->user_relate_pre }}</td>
             <td>{{ $row->user_relate_city }}</td>
             <td>{{ $row->user_relate_add }}</td>
-            <td>{{ $row->contract_created_at }}</td>
+            <td>
+              {{-- 契約日を「yyyymmdd」形式で表示する --}}
+              {{ $row->contract_created_at 
+                  ? \Illuminate\Support\Carbon::parse($row->contract_created_at)->format('Y-m-d') 
+                  : '' }}
+            </td>
             <td>{{ $row->contract_periods }}</td>
             <td>{{ $row->contract_periode }}</td>
             <td>{{ $row->ticket_type ?? '' }}</td>