diff --git a/requirements-p2.txt b/requirements-p2.txt
index bdabab7..cbb51b8 100644
--- a/requirements-p2.txt
+++ b/requirements-p2.txt
@@ -55,7 +55,7 @@ terminado==0.6
 testpath==0.3.1
 tornado==4.5.1
 traitlets==4.3.2
-urllib3==1.21.1
+urllib3==1.24.2
 wcwidth==0.1.7
 webencodings==0.5.1
 widgetsnbextension==2.0.0
diff --git a/requirements.txt b/requirements.txt
index dc701ce..a3a4752 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -47,7 +47,7 @@ terminado==0.6
 testpath==0.3.1
 tornado==4.5.1
 traitlets==4.3.2
-urllib3==1.21.1
+urllib3==1.24.2
 wcwidth==0.1.7
 webencodings==0.5.1
 widgetsnbextension==2.0.0