diff --git a/airflow/providers/microsoft/azure/hooks/wasb.py b/airflow/providers/microsoft/azure/hooks/wasb.py
index 7758ef0c92780..0aa579d877635 100644
--- a/airflow/providers/microsoft/azure/hooks/wasb.py
+++ b/airflow/providers/microsoft/azure/hooks/wasb.py
@@ -244,7 +244,7 @@ def read_file(self, container_name: str, blob_name: str, **kwargs):
         :param kwargs: Optional keyword arguments that `BlobClient.download_blob` takes.
         :type kwargs: object
         """
-        return self.download(container_name, blob_name, **kwargs).readall()
+        return self.download(container_name, blob_name, **kwargs).content_as_text()
 
     def upload(
         self,