diff --git a/setup.py b/setup.py
index 5d01353..a3fdeaf 100644
--- a/setup.py
+++ b/setup.py
@@ -103,7 +103,7 @@ def finalize_options(self):
 
 setup_kwargs = {
     "name": "cshogi",
-    "version": "0.8.7",
+    "version": "0.8.8",
     "description": "A fast Python shogi library",
     "long_description": None,
     "author": "Tadao Yamaoka",