diff --git a/Dockerfile.stage b/Dockerfile.stage
index bbf9e1d..5ae0729 100644
--- a/Dockerfile.stage
+++ b/Dockerfile.stage
@@ -14,12 +14,14 @@
 #   - soul-demo:  compiled by cc on host → dist/soul-demo
 #   - k3s:        downloaded by curl on host → dist/k3s
 
-FROM debian:bookworm-slim
+FROM ubuntu:24.04
+
+ENV DEBIAN_FRONTEND=noninteractive
 
 RUN apt-get update \
  && apt-get install -y --no-install-recommends \
-        libcurl4 \
-        libssl3 \
+        libcurl4t64 \
+        libssl3t64 \
         ca-certificates \
  && rm -rf /var/lib/apt/lists/* \
  && groupadd -r landing && useradd -r -g landing landing \