diff --git a/pyproject.toml b/pyproject.toml
index e9ad0a5..9b11535 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,9 +1,9 @@
 [misc]
-stable_version = "0.6.3"
+stable_version = "0.6.4"
 
 [tool.poetry]
 name = "whispering"
-version = "0.6.4dev0"
+version = "0.6.4"
 description = "Streaming transcriber with whisper"
 license = "MIT"
 authors = ["Yuta Hayashibe <yuta@hayashibe.jp>"]