diff --git a/web/flask/mega_tutorial/chapter13-language/app/requirements.txt b/web/flask/mega_tutorial/chapter13-language/app/requirements.txt
index 454923d..9be6a61 100644
--- a/web/flask/mega_tutorial/chapter13-language/app/requirements.txt
+++ b/web/flask/mega_tutorial/chapter13-language/app/requirements.txt
@@ -7,7 +7,7 @@ certifi==2019.6.16
 chardet==3.0.4
 Click==7.0
 colorama==0.4.1
-Django==2.2.5
+Django==2.2.28
 dominate==2.4.0
 ExifRead==2.1.2
 Flask==1.1.1