diff --git a/Dockerfile b/Dockerfile
index c7ced679..d08a04c1 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -2,7 +2,7 @@ FROM python:3.12-alpine3.19
 
 ARG VERSION
 
-RUN apk install sed
+RUN apk add sed
 COPY entrypoint.sh /entrypoint.sh
 
 RUN pip install kubernetes-validate==$(VERSION)