diff --git a/requirements.txt b/requirements.txt
index 61066a1..27f4c34 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -69,6 +69,6 @@ toolz==0.8.0
 tornado==4.4.2                                                                                              
 tqdm==4.10.0                                                                                                
 traitlets==4.3.1                                                                                            
-urllib3==1.7.1                                                                                              
+urllib3==1.24.2                                                                                              
 wcwidth==0.1.7                                                                                              
 widgetsnbextension==1.2.6