diff --git a/app/im/build/matrix-synapse/Dockerfile b/app/im/build/matrix-synapse/Dockerfile
index 20650d0..48cf2c7 100644
--- a/app/im/build/matrix-synapse/Dockerfile
+++ b/app/im/build/matrix-synapse/Dockerfile
@@ -19,7 +19,8 @@ RUN apt-get update && \
       # postgresql-dev \
       libpq-dev \
       virtualenv \
-      libxslt1-dev && \
+      libxslt1-dev \
+      git && \
     virtualenv /root/matrix-env -p /usr/bin/python3 && \
     . /root/matrix-env/bin/activate && \
     pip3 install \