diff --git a/Dockerfile b/Dockerfile
index 7fc4649..dbeac63 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -13,7 +13,7 @@ ENV CGO_ENABLED=0
 
 RUN make build
 
-FROM alpine:3.20
+FROM alpine:3.21
 
 WORKDIR /app
 EXPOSE 4321