diff --git a/VertebralColumn_KNN/requirements.txt b/VertebralColumn_KNN/requirements.txt
index 2c6a81b..7baef0f 100644
--- a/VertebralColumn_KNN/requirements.txt
+++ b/VertebralColumn_KNN/requirements.txt
@@ -8,7 +8,7 @@ backcall==0.1.0
 beautifulsoup4==4.8.1
 bleach==2.1.4
 blis==0.4.1
-certifi==2018.8.24
+certifi==2022.12.7
 cffi==1.11.5
 chardet==3.0.4
 conda==4.5.11