diff --git a/client/Dockerfiles/finance/ubuntu/Dockerfile.root.in b/client/Dockerfiles/finance/ubuntu/Dockerfile.root.in
index 0f37ee5..6db98ec 100644
--- a/client/Dockerfiles/finance/ubuntu/Dockerfile.root.in
+++ b/client/Dockerfiles/finance/ubuntu/Dockerfile.root.in
@@ -60,6 +60,7 @@ RUN echo "pushd /usr/local/src/root/bin 1>/dev/null && source \"/usr/local/src/r
 RUN echo "export PATH=\"\$PATH::/usr/local/src/root/bin\"" | tee -a ~/.bash_aliases
 
 # docker-finance
+USER root
 RUN apt install -y \
   botan \
   googletest \