diff --git a/test/upstream-requirements-py311.txt b/test/upstream-requirements-py311.txt
index 8fbdb995..26e1f9ff 100644
--- a/test/upstream-requirements-py311.txt
+++ b/test/upstream-requirements-py311.txt
@@ -33,6 +33,6 @@ six==1.16.0
 sortedcontainers==2.4.0
 toml==0.10.2
 types-toml==0.10.8.5
-urllib3==1.26.14
+urllib3==1.26.18
 Werkzeug==2.2.3
 xmltodict==0.13.0
diff --git a/test/upstream-requirements-py37.txt b/test/upstream-requirements-py37.txt
index 9fe9ad6f..19fa8471 100644
--- a/test/upstream-requirements-py37.txt
+++ b/test/upstream-requirements-py37.txt
@@ -37,7 +37,7 @@ toml==0.10.2
 tomli==2.0.1
 types-toml==0.10.8.5
 typing_extensions==4.5.0
-urllib3==1.26.14
+urllib3==1.26.18
 Werkzeug==2.2.3
 xmltodict==0.13.0
 zipp==3.14.0