diff --git a/task-sdk/src/airflow/sdk/api/client.py b/task-sdk/src/airflow/sdk/api/client.py
index 6d71a7f106b9b..6c1134036d364 100644
--- a/task-sdk/src/airflow/sdk/api/client.py
+++ b/task-sdk/src/airflow/sdk/api/client.py
@@ -863,6 +863,10 @@ def _update_auth(self, response: httpx.Response):
     )
     def request(self, *args, **kwargs):
         """Implement a convenience for httpx.Client.request with a retry layer."""
+        # Set content type as convenience if not already set
+        if "content" in kwargs and "headers" not in kwargs:
+            kwargs["headers"] = {"content-type": "application/json"}
+
         return super().request(*args, **kwargs)
 
     # We "group" or "namespace" operations by what they operate on, rather than a flat namespace with all