diff --git a/app/Dockerfile b/app/Dockerfile
index ce54c6b..19ec517 100644
--- a/app/Dockerfile
+++ b/app/Dockerfile
@@ -1,4 +1,4 @@
-FROM alpine:3.16
+FROM alpine:3.17
 EXPOSE 9000/tcp
 
 ENV SCRIPT_ROOT=/opt/tt-rss