diff --git a/CHANGELOG.md b/CHANGELOG.md
index e40db2f..d7d7d87 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,10 @@
+## 1.2.4
+
+* change `Mat.toString()` to return something like `Mat(addr=0x1dde02c74b0, type=CV_8UC4, rows=-1, cols=-1, channels=4)` by @rainyl in https://github.com/rainyl/opencv_dart/pull/233
+* migrate build toolchain from `conan` to `cmake` by @rainyl in https://github.com/rainyl/opencv_dart/pull/234
+* add `cv.floodFill` and `cv.floodFillAsync` by @rainyl in https://github.com/rainyl/opencv_dart/pull/236
+* move `findHomography` to `calib3d` by @rainyl in https://github.com/rainyl/opencv_dart/pull/236
+
 ## 1.2.3
 
 * fix: android build.gradle task by @einsitang in https://github.com/rainyl/opencv_dart/pull/226
diff --git a/binary.version b/binary.version
index e2cac26..b966e81 100644
--- a/binary.version
+++ b/binary.version
@@ -1 +1 @@
-1.2.3
\ No newline at end of file
+1.2.4
\ No newline at end of file
diff --git a/pubspec.yaml b/pubspec.yaml
index d0aa37c..54b04d1 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,6 +1,6 @@
 name: opencv_dart
 description: "OpenCV4 bindings for Dart language and Flutter, using dart:ffi. The most complete OpenCV bindings for Dart! With asynchronous support now!"
-version: 1.2.3
+version: 1.2.4
 homepage: https://github.com/rainyl/opencv_dart
 
 environment: