diff --git a/conan.spec b/conan.spec
index 042b36a..f0af7d9 100644
--- a/conan.spec
+++ b/conan.spec
@@ -1,6 +1,6 @@
 Name:          conan
 Version:       2.0.16
-Release:       2mamba
+Release:       3mamba
 Summary:       Decentralized, open-source (MIT), C/C++ package manager
 Group:         System/Management
 Vendor:        openmamba
@@ -32,6 +32,7 @@ sed -i "s|Jinja2>=.*|Jinja2|" conans/requirements.txt
 sed -i "s|node-semver==.*|node-semver|" conans/requirements.txt
 sed -i "s|PyJWT>=.*|PyJWT|" conans/requirements.txt
 sed -i "s|distro[^;]*;|distro;|" conans/requirements.txt
+sed -i "s|urllib3>=.*|urllib3|" conans/requirements.txt
 
 %build
 CFLAGS="%{optflags}" %{__python3} setup.py build
@@ -56,6 +57,9 @@ sed -i "\,\.egg-info/,d;s,.*/man/.*,&.gz," %{name}.filelist
 %{python3_sitearch}/conan-%{version}-py*.egg-info/*
 
 %changelog
+* Sun Jan 07 2024 Silvan Calarco <silvan.calarco@mambasoft.it> 2.0.16-3mamba
+- loosen versioned requirement for urllib3
+
 * Mon Dec 25 2023 Silvan Calarco <silvan.calarco@mambasoft.it> 2.0.16-2mamba
 - relax versioned requirement for python-distro