diff --git a/CHANGELOG.md b/CHANGELOG.md
index ac98a86..da6a20c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,7 @@
+## 4.2.1
+
+- Fix compile error (#48, #49)
+
 ## 4.2.0
 
 - Changed protobuf_version and compileSdkVersion to support Android 12 / SDK 31
diff --git a/pubspec.yaml b/pubspec.yaml
index 0edec58..2599355 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,6 +1,6 @@
 name: barcode_scan2
 description: A flutter plugin for scanning 2D barcodes and QRCodes via camera.
-version: 4.2.0
+version: 4.2.1
 homepage: https://github.com/mono0926/barcode_scan2
 
 dependencies: