diff --git a/python-codes/requirements.txt b/python-codes/requirements.txt
old mode 100755
new mode 100644
index 1a0b66c..02aafad
--- a/python-codes/requirements.txt
+++ b/python-codes/requirements.txt
@@ -1,4 +1,4 @@
-certifi==2018.4.16
+certifi==2022.12.7
 chardet==3.0.4
 gatenlp==3.1.1
 idna==2.6