diff --git a/slideatlas/plugins/ipython/requirements.txt b/slideatlas/plugins/ipython/requirements.txt
index e8803a55..db73eff6 100644
--- a/slideatlas/plugins/ipython/requirements.txt
+++ b/slideatlas/plugins/ipython/requirements.txt
@@ -12,5 +12,5 @@ pyzmq==14.5.0
 requests==2.2.1
 six==1.5.2
 tornado==4.0.2
-urllib3==1.7.1
+urllib3==2.5.0
 wsgiref==0.1.2