diff --git a/Dockerfile b/Dockerfile
index 140a9c5535a34884c42bc6adaaffbdeb1f1763d5..387cbc05d553cff59d4178b6abc823509804defb 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,5 +1,5 @@
 # production container
-FROM nginx:1.23.3-alpine
+FROM nginx:1.23.4-alpine
 
 LABEL maintainer="Mat2 Web Frontend Maintainer <jan.friedli@immerda.ch>"