diff --git a/.github/.release-please-manifest.json b/.github/.release-please-manifest.json
index ff008c2d..99281783 100644
--- a/.github/.release-please-manifest.json
+++ b/.github/.release-please-manifest.json
@@ -1,4 +1,4 @@
 {
   "executor": "0.16.13",
-  "oocana": "0.18.6"
+  "oocana": "0.18.7"
 }
diff --git a/oocana/CHANGELOG.md b/oocana/CHANGELOG.md
index 3481edc5..e1ef525f 100644
--- a/oocana/CHANGELOG.md
+++ b/oocana/CHANGELOG.md
@@ -1,5 +1,17 @@
 # Changelog
 
+## [0.18.7](https://github.com/oomol/oocana-python/compare/oocana@0.18.6...oocana@0.18.7) (2025-08-26)
+
+
+### Features
+
+* move preview to block request ([#429](https://github.com/oomol/oocana-python/issues/429)) ([adbf730](https://github.com/oomol/oocana-python/commit/adbf730420259f46246004b483a2471ac09465a6))
+
+
+### Code Refactoring
+
+* reduce deep copy ([#426](https://github.com/oomol/oocana-python/issues/426)) ([021b086](https://github.com/oomol/oocana-python/commit/021b086e3cd69a4a8904b78b4ce2372f9d6d1197))
+
 ## [0.18.6](https://github.com/oomol/oocana-python/compare/oocana@0.18.5...oocana@0.18.6) (2025-08-04)
 
 
diff --git a/oocana/pyproject.toml b/oocana/pyproject.toml
index e4e9d20b..fb784318 100644
--- a/oocana/pyproject.toml
+++ b/oocana/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "oocana"
-version = "0.18.6"
+version = "0.18.7"
 description = "python implement of oocana to give a context for oocana block"
 dependencies = [
     "paho-mqtt>=2",