diff --git a/app/Dockerfile b/app/Dockerfile
index 4cfc546..64e2f2f 100644
--- a/app/Dockerfile
+++ b/app/Dockerfile
@@ -1,4 +1,4 @@
-FROM alpine:3.13
+FROM alpine:3.14
 EXPOSE 9000/tcp
 
 ENV SCRIPT_ROOT=/opt/tt-rss