diff --git a/docker/build.dockerfile b/docker/build.dockerfile
index 13586e2..512aaf8 100644
--- a/docker/build.dockerfile
+++ b/docker/build.dockerfile
@@ -1,4 +1,4 @@
-FROM ghcr.io/astral-sh/uv:python3.12-slim
+FROM ghcr.io/astral-sh/uv:python3.12-bookworm-slim
 
 COPY ./scripts/*.sh /
 RUN chmod +x /*.sh
@@ -8,7 +8,7 @@ WORKDIR /app
 COPY ./pyproject.toml ./
 COPY ./uv.lock ./
 
-RUN uv env && uv sync
+RUN uv env && uv sync --frozen
 
 ENV PATH="/app/.venv/bin:$PATH"