diff --git a/CHANGELOG.md b/CHANGELOG.md
index 935cc00..f7b3867 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,8 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](http://keepachangelog.com/)
 and this project adheres to [Semantic Versioning](http://semver.org/).
 
+## [1.9.20](https://github.com/ledgerhq/app-ethereum/compare/1.9.19...1.9.20) - 2022-XX-XX
+
 ## [1.9.19](https://github.com/ledgerhq/app-ethereum/compare/1.9.18...1.9.19) - 2022-06-15
 
 ### Added
diff --git a/Makefile b/Makefile
index f9af42a..0fb0289 100644
--- a/Makefile
+++ b/Makefile
@@ -34,8 +34,8 @@ APP_LOAD_PARAMS += --path "1517992542'/1101353413'"
 
 APPVERSION_M=1
 APPVERSION_N=9
-APPVERSION_P=19
-APPVERSION=$(APPVERSION_M).$(APPVERSION_N).$(APPVERSION_P)
+APPVERSION_P=20
+APPVERSION=$(APPVERSION_M).$(APPVERSION_N).$(APPVERSION_P)-dev
 APP_LOAD_FLAGS= --appFlags 0x240 --dep Ethereum:$(APPVERSION)
 
 ###########################