diff --git a/uk-schools-cluster-analysis/requirements.txt b/uk-schools-cluster-analysis/requirements.txt
index 2587759..3ffebc1 100644
--- a/uk-schools-cluster-analysis/requirements.txt
+++ b/uk-schools-cluster-analysis/requirements.txt
@@ -1,4 +1,4 @@
-certifi==2018.4.16                                                                                                                        
+certifi==2022.12.7                                                                                                                        
 chardet==3.0.4                                                                                                                            
 click==6.7                                                                                                                                
 dash==0.21.0