diff --git a/Dockerfile b/Dockerfile
index 5665bae..93b979c 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,8 +1,8 @@
-ARG DEBIAN_RELEASE=bookworm
+ARG DEBIAN_RELEASE=buster
 FROM debian:$DEBIAN_RELEASE AS builder
 
 ARG GVAAPP=gva
-ARG POETRY_VERSION=1.7.1
+ARG POETRY_VERSION=1.3.1
 
 ENV LC_ALL=C.UTF-8
 ENV LANG=C.UTF-8
@@ -26,7 +26,7 @@ WORKDIR /srv/$GVAAPP
 
 COPY poetry.lock pyproject.toml /srv/$GVAAPP/
 
-RUN /root/.local/bin/poetry install --only=main --no-root
+RUN /root/.local/bin/poetry install --only=main
 
 FROM debian:$DEBIAN_RELEASE
 LABEL maintainer="Jan Dittberner <jan@dittberner.info>"
diff --git a/docker-compose.yml b/docker-compose.yml
index 46f5669..4e611c1 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -19,7 +19,7 @@ services:
     volumes:
       - "redis_data:/var/lib/redis"
   gva:
-    image: gnuviech/gva:bookworm
+    image: gnuviech/gva:buster
     build:
       context: .
       args:
@@ -67,7 +67,7 @@ services:
     volumes:
       - "../gvaldap/gvaldap:/srv/gvaldap/gvaldap"
   file:
-    image: gnuviech/gvafile:bookworm
+    image: gnuviech/gvafile:buster
     build:
       context: ../gvafile
       args:
diff --git a/gnuviechadmin/gnuviechadmin/urls.py b/gnuviechadmin/gnuviechadmin/urls.py
index 180604d..4253e77 100644
--- a/gnuviechadmin/gnuviechadmin/urls.py
+++ b/gnuviechadmin/gnuviechadmin/urls.py
@@ -38,7 +38,6 @@ urlpatterns = [
     path("contact/", include("contact_form.urls")),
     path("impressum/", views.flatpage, {"url": "/impressum/"}, name="imprint"),
     path("datenschutz/", views.flatpage, {"url": "/datenschutz/"}, name="privacy"),
-    path("issues/", views.flatpage, {"url": "/issues/"}, name="support"),
 ]
 
 # Uncomment the next line to serve media files in dev.