diff --git a/mcp_python/types.py b/mcp_python/types.py
index 78464ec..012122e 100644
--- a/mcp_python/types.py
+++ b/mcp_python/types.py
@@ -21,7 +21,7 @@ for reference.
   not separate types in the schema.
 """
 
-LATEST_PROTOCOL_VERSION = "2024-10-07";
+LATEST_PROTOCOL_VERSION = "2024-10-07"
 
 ProgressToken = str | int
 Cursor = str
diff --git a/tests/test_types.py b/tests/test_types.py
index d9bc46a..e2c0ac2 100644
--- a/tests/test_types.py
+++ b/tests/test_types.py
@@ -1,4 +1,9 @@
-from mcp_python.types import LATEST_PROTOCOL_VERSION, ClientRequest, JSONRPCMessage, JSONRPCRequest
+from mcp_python.types import (
+    LATEST_PROTOCOL_VERSION,
+    ClientRequest,
+    JSONRPCMessage,
+    JSONRPCRequest,
+)
 
 
 def test_jsonrpc_request():