diff --git a/docker/red-ui/Dockerfile b/docker/red-ui/Dockerfile
index 4dec7a8cc..550529111 100644
--- a/docker/red-ui/Dockerfile
+++ b/docker/red-ui/Dockerfile
@@ -24,7 +24,6 @@ CMD ["/bin/cp", "-r", "/ng-app/dist/paligo-styles", "/tmp/styles-export"]
 
 
 FROM nginx:1.25.3-alpine
-ENV NGINX_ENVSUBST_OUTPUT_DIR=/etc/nginx/conf.d
 ENV PDFTRON_ALLOWED_HOSTS=''
 ## Copy our default nginx config
 COPY docker/common/nginx/nginx.conf /etc/nginx/templates/default.conf.template
@@ -35,6 +34,8 @@ RUN rm -rf /usr/share/nginx/html/*
 ## From ‘builder’ stage copy over the artifacts in dist folder to default nginx public folder
 COPY --from=builder /ng-app/dist/apps/red-ui /usr/share/nginx/html/ui
 COPY version.json /usr/share/nginx/html/ui/assets/version/version.json
+
+RUN chmod a+rw -R /usr/nginx/conf.d
 RUN chmod o+r -R /usr/share/nginx/html
 RUN chmod g+r -R /usr/share/nginx/html