diff --git a/Dockerfile b/Dockerfile
index 878c394..de46f4e 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -55,7 +55,7 @@ RUN mix release
 #COPY rel rel
 
 # prepare release image
-FROM alpine:3.18.4 AS app
+FROM alpine:3.20.0 AS app
 RUN apk add --update bash openssl libstdc++ libgcc
 
 RUN mkdir /app