diff --git a/radicale/tests/test_base.py b/radicale/tests/test_base.py
index cf14193a..3639ad2c 100644
--- a/radicale/tests/test_base.py
+++ b/radicale/tests/test_base.py
@@ -222,7 +222,7 @@ permissions: RrWw""")
         event_modified = get_file_content("event1_modified.ics")
         path = "/calendar.ics/event1.ics"
         self.put(path, event)
-        self.put(path, event_modified)
+        self.put(path, event_modified, check=204)
         _, answer = self.get("/calendar.ics/")
         assert answer.count("BEGIN:VEVENT") == 1
         _, answer = self.get(path)
@@ -1594,8 +1594,8 @@ permissions: RrWw""")
         self.put(event_path, event1)
         sync_token, responses = self._report_sync_token(calendar_path)
         assert len(responses) == 1 and responses[event_path] == 200
-        self.put(event_path, event2)
-        self.put(event_path, event1)
+        self.put(event_path, event2, check=204)
+        self.put(event_path, event1, check=204)
         sync_token, responses = self._report_sync_token(
             calendar_path, sync_token)
         if not self.full_sync_token_support and not sync_token: