diff --git a/minimax_mcp/__init__.py b/minimax_mcp/__init__.py
index 4de0fc1..902ebd4 100644
--- a/minimax_mcp/__init__.py
+++ b/minimax_mcp/__init__.py
@@ -1,3 +1,3 @@
 """Minimax MCP Server package."""
 
-__version__ = "0.0.17"
+__version__ = "0.0.18"
diff --git a/minimax_mcp/server.py b/minimax_mcp/server.py
index c767441..ce74c5e 100644
--- a/minimax_mcp/server.py
+++ b/minimax_mcp/server.py
@@ -287,7 +287,8 @@ def play_audio(input_file_path: str, is_url: bool = False) -> TextContent:
         return TextContent(type="text", text=f"Successfully played audio file: {input_file_path}")
     else:
         file_path = process_input_file(input_file_path)
-        play(open(file_path, "rb").read())
+        with open(file_path, "rb") as f:
+            play(f.read())
         return TextContent(type="text", text=f"Successfully played audio file: {file_path}")