diff --git a/VERSION b/VERSION
index 0cadbc1e..da6b0a8f 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-2.5.5
+2.5.6
diff --git a/docs/CHANGELOG.md b/docs/CHANGELOG.md
index 480b33f3..a6154daa 100644
--- a/docs/CHANGELOG.md
+++ b/docs/CHANGELOG.md
@@ -6,6 +6,10 @@
 
 ### Improve
 
+## 2.5.6
+
+### Improve
+
 * Update dependencies [#508](https://github.com/Riey/kime/issues/508)
 * Fix sebeolsik-3sin-p2 '"' character [#509](https://github.com/Riey/kime/issues/509)
 * Fix sebeolsik-391 "S-F" key [#521](https://github.com/Riey/kime/issues/521)