diff --git a/Dockerfile b/Dockerfile
index 7e908923..e5e04256 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM alpine:3.16
+FROM alpine:3.18
 ENV APP_USER=regula
 ENV APP_DIR=/workspace
 RUN adduser -s /bin/true -u 1000 -D -h $APP_DIR $APP_USER