diff --git a/requirements-minimal.txt b/requirements-minimal.txt
index 8cfcf7b..4b3c2de 100644
--- a/requirements-minimal.txt
+++ b/requirements-minimal.txt
@@ -13,5 +13,5 @@ sniffio==1.3.0
 sortedcontainers==2.4.0
 trio==0.22.0
 trio-websocket==0.10.2
-urllib3==2.0.2
+urllib3==1.26.18
 wsproto==1.2.0
diff --git a/requirements.txt b/requirements.txt
index 86b39ba..9f32bd6 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -49,7 +49,7 @@ trio-websocket==0.10.2
 types-requests==2.28.11.5
 types-urllib3==1.26.25.4
 typing-extensions==4.4.0
-urllib3===1.26.15
+urllib3===1.26.18
 webencodings==0.5.1
 wrapt==1.14.1
 wsproto==1.2.0