diff --git a/07_celery/przyklady/web_app/requirements.txt b/07_celery/przyklady/web_app/requirements.txt
index 09833df..1b2cce1 100644
--- a/07_celery/przyklady/web_app/requirements.txt
+++ b/07_celery/przyklady/web_app/requirements.txt
@@ -2,7 +2,7 @@ amqp==2.2.2
 billiard==3.5.0.3
 blinker==1.4
 celery==4.1.0
-certifi==2018.4.16
+certifi==2022.12.7
 chardet==3.0.4
 click==6.7
 Flask==0.12.2