diff --git a/clr_test/db-updater/Dockerfile b/clr_test/db-updater/Dockerfile
index 029cdde28..246a01c32 100644
--- a/clr_test/db-updater/Dockerfile
+++ b/clr_test/db-updater/Dockerfile
@@ -1,14 +1,10 @@
-FROM debian
+FROM alpine
 
-WORKDIR /opt
+ADD combined_update_ddl.sql /init.sql
+ADD init.sh /init.sh
 
-ADD combined_update_ddl.sql init.sql
-ADD init.sh init.sh
-
-USER root
-
-RUN apt update && apt install postgresql-client -y
-RUN chmod +x init.sql
+RUN apk add --update --no-cache postgresql-client
+RUN chmod +x init.sh
 RUN find . -name "*.sh" | xargs sed -i 's/\r$//'
 
-CMD [ "./init.sh" ]
\ No newline at end of file
+ENTRYPOINT [ "./init.sh" ]
\ No newline at end of file