diff --git a/apps/api/Dockerfile b/apps/api/Dockerfile
index a0b900b..d993a14 100644
--- a/apps/api/Dockerfile
+++ b/apps/api/Dockerfile
@@ -10,12 +10,17 @@ RUN npm run build && npm prune --omit=dev
 FROM node:20-bookworm-slim AS runtime
 WORKDIR /app
 RUN apt-get update \
- && apt-get install -y --no-install-recommends ffmpeg ca-certificates curl \
+ && apt-get install -y --no-install-recommends ffmpeg ca-certificates curl unzip \
  && curl -fsSL https://github.com/yt-dlp/yt-dlp/releases/latest/download/yt-dlp_linux \
       -o /usr/local/bin/yt-dlp \
  && chmod a+rx /usr/local/bin/yt-dlp \
  && yt-dlp --version \
- && apt-get purge -y curl && apt-get autoremove -y && rm -rf /var/lib/apt/lists/*
+ # deno: runtime JS wymagany przez yt-dlp do ekstrakcji YouTube (auto-wykrywany w PATH)
+ && curl -fsSL https://github.com/denoland/deno/releases/latest/download/deno-x86_64-unknown-linux-gnu.zip \
+      -o /tmp/deno.zip \
+ && unzip -q -d /usr/local/bin /tmp/deno.zip && chmod a+rx /usr/local/bin/deno && rm /tmp/deno.zip \
+ && deno --version \
+ && apt-get purge -y curl unzip && apt-get autoremove -y && rm -rf /var/lib/apt/lists/*
 
 COPY apps/api/package.json ./
 COPY --from=build /app/node_modules ./node_modules