diff --git a/uk-schools-cluster-analysis/requirements.txt b/uk-schools-cluster-analysis/requirements.txt
index 2587759..692e0d4 100644
--- a/uk-schools-cluster-analysis/requirements.txt
+++ b/uk-schools-cluster-analysis/requirements.txt
@@ -27,5 +27,5 @@ scikit-learn==0.19.1
 six==1.11.0                                                                                                                               
 sklearn==0.0                                                                                                                              
 traitlets==4.3.2                                                                                                                          
-urllib3==1.22                                                                                                                             
+urllib3==1.26.5                                                                                                                             
 Werkzeug==0.14.1