diff --git a/ar.yaml b/ar.yaml
index e5df97b..3edd721 100644
--- a/ar.yaml
+++ b/ar.yaml
@@ -229,7 +229,7 @@ tests:
     expect:
       holiday: false
   - given:
-      date: ['2016-10-12', '2021-10-11']
+      date: ['2016-10-10', '2021-10-11']
       regions: ['ar']
       options: 'informal'
     expect: