diff --git a/CHANGELOG.md b/CHANGELOG.md
index 92185e2d6e1dbdcd1cd21ffffcfd11cf3698c69a..677ef3d701b3e20ac4b2e1e06fd169e0fdf6ac2c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,9 @@
 Changelog
 =========
 
+Unreleased
+----------
+
 [1.2.2] (2023-11-03)
 --------------------
 
diff --git a/pyproject.toml b/pyproject.toml
index 207a3acb94a4d8bae79843f096e936c5afa7d3b9..3002a128913bb21e48f855a3da45eafb73286dfb 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "whisper-asr-webservice"
-version = "1.2.2"
+version = "1.2.3-dev"
 description = "Whisper ASR Webservice is a general-purpose speech recognition webservice."
 homepage  = "https://github.com/ahmetoner/whisper-asr-webservice/"
 license = "https://github.com/ahmetoner/whisper-asr-webservice/blob/main/LICENCE"