diff --git a/docker/Dockerfile b/docker/Dockerfile
index 3f238f34..192c2024 100644
--- a/docker/Dockerfile
+++ b/docker/Dockerfile
@@ -14,7 +14,7 @@ FROM base as dep_builder
 RUN apt-get update \
     && apt-get install -y gcc build-essential \
     && rm -rf /var/lib/apt/lists/*
-COPY setup.cfg ./
+COPY pyproject.toml setup.cfg ./
 COPY src/stactools/core/__init__.py src/stactools/core/
 # Install dependencies but remove the actual package
 RUN pip install --prefix=/install . \