diff --git a/PiCamera/requirements.txt b/PiCamera/requirements.txt
index 70c515c..2e7ba80 100644
--- a/PiCamera/requirements.txt
+++ b/PiCamera/requirements.txt
@@ -6,4 +6,4 @@ idna==2.6
 PyYAML==3.12
 requests==2.18.4
 tinys3==0.1.12
-urllib3==1.22
+urllib3==1.24.2