diff --git a/Dockerfile b/Dockerfile
index fb69219..cd2b567 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
 ARG VERSION=latest
-FROM tomsquest/docker-radicale:3.2.3.1
+FROM tomsquest/docker-radicale:3.3.0.0
 
-RUN /venv/bin/pip install git+https://github.com/Unrud/RadicaleInfCloud
+RUN /venv/bin/pip install --upgrade git+https://github.com/Unrud/RadicaleInfCloud