diff --git a/requirements.txt b/requirements.txt
index 4d33b80..ac56b7b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -31,5 +31,5 @@ sphinxcontrib-htmlhelp==1.0.2
 sphinxcontrib-jsmath==1.0.1
 sphinxcontrib-qthelp==1.0.2
 sphinxcontrib-serializinghtml==1.1.3
-urllib3==1.25.7
+urllib3==1.26.5
 Werkzeug==0.16.0