diff --git a/minimum-constraints.txt b/minimum-constraints.txt
index 9673a29..c0bef30 100644
--- a/minimum-constraints.txt
+++ b/minimum-constraints.txt
@@ -43,7 +43,7 @@ prometheus-client>=0.17.0; python_version <= '3.7'
 # TODO-PYPI: Re-enable once a new version of prometheus-client (after 2023-11-09) has been released on Pypi
 # prometheus-client>=0.18.x; python_version >= '3.8'
 
-urllib3==1.26.17
+urllib3==1.26.18
 jsonschema==3.2.0
 six==1.14.0; python_version <= '3.9'
 six==1.16.0; python_version >= '3.10'
diff --git a/requirements.txt b/requirements.txt
index 371f60a..e32f115 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -15,7 +15,7 @@ zhmcclient>=1.9.1
 # prometheus-client>=0.18.x; python_version >= '3.8'
 prometheus-client@git+https://github.com/prometheus/client_python.git@master
 
-urllib3>=1.25.17
+urllib3>=1.25.18
 jsonschema>=3.2.0
 Jinja2>=2.11.3