diff --git a/securedrop_client/gui/widgets.py b/securedrop_client/gui/widgets.py
index b26fef1a02..bb9587712c 100644
--- a/securedrop_client/gui/widgets.py
+++ b/securedrop_client/gui/widgets.py
@@ -637,6 +637,9 @@ def on_source_changed(self):
             # else we create it.
             try:
                 conversation_wrapper = self.source_conversations[source]
+
+                # Redraw the conversation view such that new messages, replies, files appear.
+                conversation_wrapper.conversation_view.update_conversation(source.collection)
             except KeyError:
                 conversation_wrapper = SourceConversationWrapper(source, self.controller)
                 self.source_conversations[source] = conversation_wrapper