diff --git a/docs/requirements.txt b/docs/requirements.txt
index 0227adc..35c3064 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -25,4 +25,4 @@ sphinxcontrib-jsmath==1.0.1
 sphinxcontrib-qthelp==1.0.6
 sphinxcontrib-serializinghtml==1.1.9
 tornado==6.4.2
-urllib3==2.2.2
+urllib3==2.5.0