diff --git a/python-telegram-bot.spec b/python-telegram-bot.spec
index 498ad83..55be5fe 100644
--- a/python-telegram-bot.spec
+++ b/python-telegram-bot.spec
@@ -1,6 +1,6 @@
 Name:          python-telegram-bot
-Version:       20.2
-Release:       1mamba
+Version:       20.4
+Release:       2mamba
 Summary:       A pure Python interface for the Telegram Bot API
 Group:         System/Libraries
 Vendor:        openmamba
@@ -10,9 +10,10 @@ URL:           https://pypi.org/project/python-telegram-bot/
 Source:        http://pypi.debian.net/python-telegram-bot/python-telegram-bot-%{version}.tar.gz
 License:       LGPL
 ## AUTOBUILDREQ-BEGIN
-BuildRequires: (python3.7dist(httpx) >= 0.23.3 with python3.7dist(httpx) < 0.24)
-BuildRequires: libpython3-devel
+BuildRequires: libpython311-devel
+BuildRequires: python3.11dist(httpx)
 ## AUTOBUILDREQ-END
+BuildRequires: python3-devel >= 3.11.5-3mamba
 
 %description
 %{summary}.
@@ -23,7 +24,8 @@ BuildRequires: libpython3-devel
 
 %prep
 %setup -q
-sed -i "s|APScheduler==3.6.3|APScheduler>=3.6.3|" requirements.txt python_telegram_bot.egg-info/requires.txt
+sed -i "s|APScheduler==3.6.3|APScheduler>=3.6.3|;s|httpx~=.*|httpx|;s|httpx ~= .*|httpx|" \
+   requirements.txt python_telegram_bot.egg-info/requires.txt
 
 %build
 CFLAGS="%{optflags}" %{__python} setup.py build
@@ -46,6 +48,15 @@ sed -i "\,\.egg-info/,d;s,.*/man/.*,&.gz," %{name}.filelist
 %doc LICENSE
 
 %changelog
+* Tue Oct 03 2023 Silvan Calarco <silvan.calarco@mambasoft.it> 20.4-2mamba
+- remove versioned requirement for httpx
+
+* Sun Oct 01 2023 Automatic Build System <autodist@mambasoft.it> 20.4-1mamba
+- automatic version update by autodist
+
+* Fri Sep 29 2023 Automatic Build System <autodist@mambasoft.it> 20.2-2mamba
+- rebuilt by autoport with build requirements: python3-devel>=3.11.5-3mamba
+
 * Tue Mar 28 2023 Automatic Build System <autodist@mambasoft.it> 20.2-1mamba
 - automatic version update by autodist