diff --git a/obs-server/Dockerfile b/obs-server/Dockerfile
index b6e324f189cb4cd54dfdc6adb029a7e45a43fecb..22f3661cc5fbb9eb242a36605ed9158d5ce94f04 100644
--- a/obs-server/Dockerfile
+++ b/obs-server/Dockerfile
@@ -15,7 +15,7 @@ COPY collabora-archive-keyring.gpg /usr/share/keyrings/
 RUN sed -i 's/stable/stretch/g' /etc/apt/sources.list \
  && apt-get update \
  && apt-get install -y supervisor \
-      obs-server locales
+      obs-server locales time
 
 VOLUME /srv/obs