diff --git a/requirements.txt b/requirements.txt
old mode 100755
new mode 100644
index e46d498c..e7abaf79
--- a/requirements.txt
+++ b/requirements.txt
@@ -4,7 +4,7 @@ astor==0.8.1
 attrs==19.3.0
 backcall==0.1.0
 cachetools==3.1.1
-certifi==2019.11.28
+certifi==2022.12.7
 chardet==3.0.4
 cycler==0.10.0
 decorator==4.4.1