diff --git a/changelog.d/4108.misc b/changelog.d/4108.misc
new file mode 100644
index 000000000..85810c3d8
--- /dev/null
+++ b/changelog.d/4108.misc
@@ -0,0 +1 @@
+The "Received rdata" log messages on workers is now logged at DEBUG, not INFO.
diff --git a/synapse/replication/tcp/client.py b/synapse/replication/tcp/client.py
index cbe964581..586dddb40 100644
--- a/synapse/replication/tcp/client.py
+++ b/synapse/replication/tcp/client.py
@@ -106,7 +106,7 @@ class ReplicationClientHandler(object):
 
         Can be overriden in subclasses to handle more.
         """
-        logger.info("Received rdata %s -> %s", stream_name, token)
+        logger.debug("Received rdata %s -> %s", stream_name, token)
         return self.store.process_replication_rows(stream_name, token, rows)
 
     def on_position(self, stream_name, token):