diff --git a/Dockerfile b/Dockerfile
index a4aada1..3850180 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -2,7 +2,15 @@ FROM python:3.9-slim-buster
 
 WORKDIR /app
 
-COPY requirements.txt requirements.txt
+RUN apt-get update && \
+    apt-get install -y --no-install-recommends git openssh-client && \
+    rm -rf /var/lib/apt/lists/*
+
+
+COPY . /app
+
+RUN --mount=type=ssh git submodule update --init --recursive
+
 RUN pip3 install -r requirements.txt
 
 COPY . .