diff --git a/CHANGELOG.md b/CHANGELOG.md
index a6f2e4c..221c74b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,9 @@
+## 10.4.0 (March 7, 2024)
+
+### Features
+
+* Add support for eslint flat config format ([#349](https://github.com/lo1tuma/eslint-plugin-mocha/pull/349))
+
 ## 10.3.0 (February 16, 2024)
 
 ### Features
diff --git a/package-lock.json b/package-lock.json
index 87590d2..11cf9f6 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
     "name": "eslint-plugin-mocha",
-    "version": "10.3.0",
+    "version": "10.4.0",
     "lockfileVersion": 3,
     "requires": true,
     "packages": {
         "": {
             "name": "eslint-plugin-mocha",
-            "version": "10.3.0",
+            "version": "10.4.0",
             "license": "MIT",
             "dependencies": {
                 "eslint-utils": "^3.0.0",
diff --git a/package.json b/package.json
index c9c03ec..7842782 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
     "name": "eslint-plugin-mocha",
-    "version": "10.3.0",
+    "version": "10.4.0",
     "description": "Eslint rules for mocha.",
     "engines": {
         "node": ">=20.0.0"