diff --git a/lesson04/devops10/requirements.txt b/lesson04/devops10/requirements.txt
old mode 100755
new mode 100644
index 848e799..8d42a39
--- a/lesson04/devops10/requirements.txt
+++ b/lesson04/devops10/requirements.txt
@@ -2,7 +2,7 @@ amqp==2.6.0
 billiard==3.6.3.0
 casbin==0.8.4
 celery==4.4.6
-certifi==2020.6.20
+certifi==2022.12.7
 chardet==3.0.4
 coreapi==2.3.3
 coreschema==0.0.4