diff --git a/workflows/plugins/hooks/inspirehep/inspire_http_hook.py b/workflows/plugins/hooks/inspirehep/inspire_http_hook.py
index 094ff451..15b93fd9 100644
--- a/workflows/plugins/hooks/inspirehep/inspire_http_hook.py
+++ b/workflows/plugins/hooks/inspirehep/inspire_http_hook.py
@@ -1,4 +1,3 @@
-import json
 import logging
 
 import requests
@@ -60,6 +59,6 @@ def call_api(self, method: str, endpoint: str, data: dict) -> Response:
             _retry_args=self.tenacity_retry_kwargs,
             endpoint=endpoint,
             headers=self.headers,
-            data=json.dumps(data),
+            data=data,
             method=method,
         )