diff --git a/Dockerfile b/Dockerfile
index 3d992e4..079063e 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -22,7 +22,7 @@ COPY lib lib
 RUN mix do compile, release
 
 # prepare release image
-FROM alpine:3.18.3 AS app
+FROM alpine:3.18.4 AS app
 RUN apk add --no-cache openssl ncurses-libs
 WORKDIR /app
 RUN chown nobody:nobody /app