diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2cf4f495..5a2c4d58 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,9 @@
+# [8.18.0](https://github.com/vivliostyle/vivliostyle-cli/compare/v8.17.2...v8.18.0) (2025-01-17)
+
+### Features
+
+- Update Vivliostyle.js to 2.31.0: Extended CSS Page Floats support ([6964349](https://github.com/vivliostyle/vivliostyle-cli/commit/696434918d7bad4bed537ad80646d16bfa21db9b))
+
 ## [8.17.2](https://github.com/vivliostyle/vivliostyle-cli/compare/v8.17.1...v8.17.2) (2025-01-10)
 
 ### Bug Fixes
diff --git a/package.json b/package.json
index 14b355dc..57001663 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@vivliostyle/cli",
   "description": "Save the pdf file via headless browser and Vivliostyle.",
-  "version": "8.17.2",
+  "version": "8.18.0",
   "author": "spring_raining <harusamex.com@gmail.com>",
   "type": "module",
   "scripts": {