diff --git a/docker/Dockerfile b/docker/Dockerfile
index 0fea311..160621d 100644
--- a/docker/Dockerfile
+++ b/docker/Dockerfile
@@ -1,4 +1,5 @@
 FROM node:22-trixie-slim
+RUN apt-get update && apt-get install -y --no-install-recommends git && rm -rf /var/lib/apt/lists/*
 WORKDIR /app
 COPY package*.json .
 # --omit=dev is safe: tests use node:test (stdlib), devDeps are only eslint/prettier