diff --git a/Dockerfile b/Dockerfile
index 8d380a9..e2d0039 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,5 +1,5 @@
 # syntax=docker/dockerfile:labs
-FROM alpine:3.20.3
+FROM alpine:3.21.0
 RUN apk upgrade --no-cache -a && \
     apk add --no-cache ca-certificates tzdata tini git && \
     git config --global --add safe.directory /src