diff --git a/Dockerfile b/Dockerfile
index 53f495c..7c4e752 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -7,6 +7,12 @@ WORKDIR /app
 # Copy the current directory contents into the container at /app
 COPY . /app
 
+RUN apt-get update && \
+    apt-get install -y --no-install-recommends git openssh-client && \
+    rm -rf /var/lib/apt/lists/*
+
+RUN --mount=type=ssh git submodule update --init --recursive
+
 # Install any needed packages specified in requirements.txt
 RUN pip install --no-cache-dir -r requirements.txt
 
@@ -18,5 +24,4 @@ ENV FLASK_APP=wsgi.py
 ENV FLASK_RUN_HOST=0.0.0.0
 
 # Run the application
-CMD ["flask", "run"]
-
+CMD ["flask", "run"]
\ No newline at end of file