diff --git a/Code_Paper_Figures/Supplement/S3_Fit_Algorithm/requirements.txt b/Code_Paper_Figures/Supplement/S3_Fit_Algorithm/requirements.txt
index 26d897a..18757e2 100644
--- a/Code_Paper_Figures/Supplement/S3_Fit_Algorithm/requirements.txt
+++ b/Code_Paper_Figures/Supplement/S3_Fit_Algorithm/requirements.txt
@@ -7,7 +7,7 @@ backports-abc==0.5
 backports.functools-lru-cache==1.5
 backports.shutil-get-terminal-size==1.0.0
 bleach==1.4.2
-certifi==2018.4.16
+certifi==2022.12.7
 cffi==1.11.5
 chardet==3.0.4
 cloudpickle==0.5.2