diff --git a/requirements.txt b/requirements.txt
index 014a0b40..b80ed042 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -18,4 +18,4 @@ snowballstemmer==1.2.1
 Sphinx==1.8.4
 sphinx-rtd-theme==0.4.2
 sphinxcontrib-websupport==1.1.0
-urllib3==1.24.2
+urllib3==1.26.5