diff --git a/requirements.txt b/requirements.txt
old mode 100755
new mode 100644
index d3b9a9b..b1e7feb
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
-certifi==2018.1.18
+certifi==2022.12.7
 chardet==3.0.4
 future==0.16.0
 gym==0.10.5