diff --git a/package/Dockerfile b/package/Dockerfile
index 820359a..ec5677c 100644
--- a/package/Dockerfile
+++ b/package/Dockerfile
@@ -2,6 +2,6 @@ FROM alpine:3.19
 ARG BUILDDATE
 LABEL buildDate=$BUILDDATE
 RUN apk --no-cache upgrade && \
-    apk add -U --no-cache iptables ip6tables nftables
+    apk add -U --no-cache iptables ip6tables nftables iptables-legacy
 COPY entry /usr/bin/
 CMD ["entry"]