diff --git a/Containerfile b/Containerfile
index 4fd58b9..ebb5924 100644
--- a/Containerfile
+++ b/Containerfile
@@ -27,6 +27,8 @@ RUN git clone https://github.com/fedora-infra/mirrormanager2.git .
 RUN sed -e 's/signed_fpca/signed_rosca/' -i mirrormanager2/perms.py mirrormanager2/auth.py
 RUN pip install --prefix=/install .
 
+RUN pip install --prefix=/install flask_session
+
 # Stage 2: Final stage with runtime dependencies
 FROM quay.io/fedora/python-312:latest AS runtime
 LABEL \