diff --git a/Dockerfile b/Dockerfile
index cd7863f..b0f3465 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -8,7 +8,7 @@ FROM registry.k8s.io/pause:3.10@sha256:ee6521f290b2168b6e0935a181d4cff9be1ac3f50
 # BUILDPLATFORM is an automatic platform ARG enabled by Docker BuildKit.
 # Represents the platform where the build is happening, do not mix with
 # TARGETARCH
-FROM docker.io/library/alpine:3.20.3@sha256:beefdbd8a1da6d2915566fde36db9db0b524eb737fc57cd1367effd16dc0d06d
+FROM docker.io/library/alpine:3.21.0@sha256:21dc6063fd678b478f57c0e13f47560d0ea4eeba26dfc947b2a4f81f686b9f45
 COPY --from=pause /pause /usr/bin/pause
 RUN apk add --no-cache curl iputils bind-tools tcpdump iproute2
 ENTRYPOINT ["/usr/bin/curl"]