diff --git a/src/dlp-runner/main.py b/src/dlp-runner/main.py
index 8bd9ecb..fa22e1a 100644
--- a/src/dlp-runner/main.py
+++ b/src/dlp-runner/main.py
@@ -39,4 +39,4 @@ def run_dlp_on_text(text_data, dlp_template, project_id):
         }
     )
 
-    return proto.Message.to_dict(dlp_response.result)
+    return proto.Message.to_json(dlp_response.result)