diff --git a/CHANGELOG.md b/CHANGELOG.md
index dbee0196495..320bf2afa4c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -24,6 +24,7 @@
 - Enhance: センシティブメディアの判定を外部サービス ([sensitive-detector](https://github.com/misskey-dev/sensitive-detector)) に分離し、`nsfwjs` / `@tensorflow/tfjs(-node)` の同梱と NSFW 判定モデルを廃止 (#16804)
 - Enhance: Node.js 22.23.0以降、24.17.0以降、26.4.0以降をサポートするように
 - Enhance: Docker Image の Node.js を 26.4.0 に、Debian を trixie (v13) に更新
+- Enhance: Docker Image のサイズを削減
 - Fix: `/stats` API のレスポンス型が正しくない問題を修正
 
 ## 2026.6.0
diff --git a/Dockerfile b/Dockerfile
index 2823c2cd393..adc28fcfe2d 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -2,6 +2,9 @@
 
 ARG NODE_VERSION=26.4.0-trixie
 
+# Get static binary of ffmpeg
+FROM mwader/static-ffmpeg:8.1 AS ffmpeg-bin
+
 # build assets & compile TypeScript
 
 FROM --platform=$BUILDPLATFORM node:${NODE_VERSION} AS native-builder
@@ -78,7 +81,7 @@ ENV PNPM_CONFIG_VERIFY_DEPS_BEFORE_RUN=false
 
 RUN apt-get update \
 	&& apt-get install -y --no-install-recommends \
-	ffmpeg tini curl libjemalloc-dev libjemalloc2 \
+	tini curl libjemalloc-dev libjemalloc2 \
 	&& ln -s /usr/lib/$(uname -m)-linux-gnu/libjemalloc.so.2 /usr/local/lib/libjemalloc.so \
 	&& groupadd -g "${GID}" misskey \
 	&& useradd -l -u "${UID}" -g "${GID}" -m -d /misskey misskey \
@@ -87,6 +90,9 @@ RUN apt-get update \
 	&& apt-get clean \
 	&& rm -rf /var/lib/apt/lists
 
+COPY --from=ffmpeg-bin /ffmpeg /usr/local/bin/
+COPY --from=ffmpeg-bin /ffprobe /usr/local/bin/
+
 # add package.json to add pnpm
 COPY ./package.json ./package.json
 RUN node -e "console.log(JSON.parse(require('node:fs').readFileSync('./package.json')).packageManager)" | xargs npm install -g