diff --git a/requirements.txt b/requirements.txt
index 2394c90..1d4e564 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -33,4 +33,4 @@ snowballstemmer==1.2.1
 Sphinx==1.7.2
 sphinx-rtd-theme==0.2.4
 sphinxcontrib-websupport==1.0.1
-urllib3==1.22
+urllib3==1.26.5