diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index 76672cff..44204dd0 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-    ".": "1.8.5"
+    ".": "1.9.0"
 }
diff --git a/CHANGELOG.md b/CHANGELOG.md
index af26f408..18a2fa7e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,12 @@
 # Changelog
 
+## [1.9.0](https://github.com/razonyang/hugo-theme-bootstrap/compare/v1.8.5...v1.9.0) (2024-12-22)
+
+
+### Features ✨
+
+* add the topAppBar.expandBreakpoint parameter ([#1090](https://github.com/razonyang/hugo-theme-bootstrap/issues/1090)) ([7e74d54](https://github.com/razonyang/hugo-theme-bootstrap/commit/7e74d54bb886b225ae9bb29ae9ee66f9940a1f2a))
+
 ## [1.8.5](https://github.com/razonyang/hugo-theme-bootstrap/compare/v1.8.4...v1.8.5) (2024-12-21)