diff --git a/libs/community/langchain_community/tools/slack/get_channel.py b/libs/community/langchain_community/tools/slack/get_channel.py
index a3dbe13939a..4cee16a9350 100644
--- a/libs/community/langchain_community/tools/slack/get_channel.py
+++ b/libs/community/langchain_community/tools/slack/get_channel.py
@@ -31,7 +31,7 @@ class SlackGetChannel(SlackBaseTool):
                 and "created" in channel
                 and "num_members" in channel
             ]
-            return json.dumps(filtered_result)
+            return json.dumps(filtered_result, ensure_ascii=False)
 
         except Exception as e:
             return "Error creating conversation: {}".format(e)
diff --git a/libs/community/langchain_community/tools/slack/get_message.py b/libs/community/langchain_community/tools/slack/get_message.py
index c0e9cde3427..06ec9a9f570 100644
--- a/libs/community/langchain_community/tools/slack/get_message.py
+++ b/libs/community/langchain_community/tools/slack/get_message.py
@@ -39,6 +39,6 @@ class SlackGetMessage(SlackBaseTool):
                 for message in messages
                 if "user" in message and "text" in message and "ts" in message
             ]
-            return json.dumps(filtered_messages)
+            return json.dumps(filtered_messages, ensure_ascii=False)
         except Exception as e:
             return "Error creating conversation: {}".format(e)