diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index e552d290..250df547 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,4 +1,4 @@
 {
-  "packages/core": "0.39.0",
-  "packages/react": "0.39.0"
+  "packages/core": "0.40.0",
+  "packages/react": "0.40.0"
 }
diff --git a/packages/core/CHANGELOG.md b/packages/core/CHANGELOG.md
index 57b2ac68..c1a779f7 100644
--- a/packages/core/CHANGELOG.md
+++ b/packages/core/CHANGELOG.md
@@ -1,5 +1,12 @@
 # Changelog
 
+## [0.40.0](https://github.com/prosekit/meowdown/compare/core-v0.39.0...core-v0.40.0) (2026-07-08)
+
+
+### Miscellaneous Chores
+
+* **core:** Synchronize meowdown versions
+
 ## [0.39.0](https://github.com/prosekit/meowdown/compare/core-v0.38.0...core-v0.39.0) (2026-07-07)
 
 
diff --git a/packages/core/package.json b/packages/core/package.json
index 5ce56fba..ce90223f 100644
--- a/packages/core/package.json
+++ b/packages/core/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@meowdown/core",
   "type": "module",
-  "version": "0.39.0",
+  "version": "0.40.0",
   "license": "MIT",
   "repository": {
     "type": "git",
diff --git a/packages/react/CHANGELOG.md b/packages/react/CHANGELOG.md
index 0b25cf96..acce3901 100644
--- a/packages/react/CHANGELOG.md
+++ b/packages/react/CHANGELOG.md
@@ -1,5 +1,12 @@
 # Changelog
 
+## [0.40.0](https://github.com/prosekit/meowdown/compare/react-v0.39.0...react-v0.40.0) (2026-07-08)
+
+
+### Features
+
+* **react:** add attach file slash command ([#261](https://github.com/prosekit/meowdown/issues/261)) ([0bb1d73](https://github.com/prosekit/meowdown/commit/0bb1d733673c9201bf49668e5c1b3e842d4a3e6a))
+
 ## [0.39.0](https://github.com/prosekit/meowdown/compare/react-v0.38.0...react-v0.39.0) (2026-07-07)
 
 
diff --git a/packages/react/package.json b/packages/react/package.json
index c1588ce5..b217dd88 100644
--- a/packages/react/package.json
+++ b/packages/react/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@meowdown/react",
   "type": "module",
-  "version": "0.39.0",
+  "version": "0.40.0",
   "license": "MIT",
   "repository": {
     "type": "git",