diff --git a/app/terraform/list/http_post.py b/app/terraform/list/http_post.py
index 778de13..51a0686 100644
--- a/app/terraform/list/http_post.py
+++ b/app/terraform/list/http_post.py
@@ -29,6 +29,7 @@ class ListHttpPostAutomation(ListAutomation):
 
       request_headers = {
         Authorization = "Bearer {{ list.filename }}"
+        Content-Type = "application/json"
       }
     }
     {% endfor %}