diff --git a/requirements.txt b/requirements.txt
index 810aa91..348287a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -12,4 +12,4 @@ Pyzotero==1.2.13
 requests==2.18.4
 six==1.11.0
 Unidecode==0.4.21
-urllib3==1.22
+urllib3==1.24.2