diff --git a/misc/ci/Dockerfile b/misc/ci/Dockerfile
index 0e4da0c..02203de 100644
--- a/misc/ci/Dockerfile
+++ b/misc/ci/Dockerfile
@@ -1,6 +1,6 @@
 FROM alpine:3.21
 
-RUN apk add nodejs npm jq bash curl ca-certificates python3 build-base
+RUN apk add nodejs npm jq bash curl ca-certificates python3 build-base coreutils
 
 RUN npm install -g xml2json