diff --git a/VertebralColumn_KNN/requirements.txt b/VertebralColumn_KNN/requirements.txt
index 2c6a81b..6afc387 100644
--- a/VertebralColumn_KNN/requirements.txt
+++ b/VertebralColumn_KNN/requirements.txt
@@ -94,7 +94,7 @@ tornado==5.1
 tqdm==4.38.0
 traitlets==4.3.2
 Twisted==17.5.0
-urllib3==1.23
+urllib3==1.26.5
 wasabi==0.4.0
 wcwidth==0.1.7
 webencodings==0.5.1