diff --git a/CHANGELOG.md b/CHANGELOG.md
index bf3377d..89cfc7a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,6 @@
+## 5.2.1
+[Android] revert kotlin 1.8.0 to 1.7.10 due to compatibility issues.
+
 ## 5.2.0
 [Android] Updated Nordic DFU Library to version 2.3.0
 
diff --git a/pubspec.yaml b/pubspec.yaml
index 06e8aac..ef99501 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,6 +1,6 @@
 name: nordic_dfu
 description: This library allows you to do a Device Firmware Update (DFU) of your nrf51 or nrf52 chip from Nordic Semiconductor. Fork of flutter-nordic-dfu.
-version: 5.2.0
+version: 5.2.1
 homepage: https://github.com/juliansteenbakker/nordic_dfu
 
 environment: