diff --git a/cxx-amd64-alpine-3.20/Dockerfile b/cxx-amd64-alpine-3.20/Dockerfile
index 3cd92d3..4c6a0a8 100644
--- a/cxx-amd64-alpine-3.20/Dockerfile
+++ b/cxx-amd64-alpine-3.20/Dockerfile
@@ -1,6 +1,6 @@
 FROM alpine:3.20
 
-RUN apk add g++ xxd openssl git make
+RUN apk add g++ xxd openssl git make curl
 
 RUN true \
   && mkdir ~/build2-build \