diff --git a/api/Dockerfile b/api/Dockerfile
index 9d0ae00290..0d4679b76a 100644
--- a/api/Dockerfile
+++ b/api/Dockerfile
@@ -28,7 +28,7 @@ RUN apt-get update \
 
 # Install Python dependencies
 COPY pyproject.toml poetry.lock ./
-RUN poetry install --no-cache --no-root
+RUN poetry install --sync --no-cache --no-root
 
 # production stage
 FROM base AS production