diff --git a/Dockerfile b/Dockerfile
index 809e4ff..2e7da62 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM alpine:3.20@sha256:1e42bbe2508154c9126d48c2b8a75420c3544343bf86fd041fb7527e017a4b4a
+FROM alpine:3.21@sha256:56fa17d2a7e7f168a043a2712e63aed1f8543aeafdcee47c58dcffe38ed51099
 ARG BINARY=binary-build-arg-not-defined
 ENV BINARY=${BINARY}
 ENTRYPOINT ["sh", "-c"]