diff --git a/src/ui/Dockerfile b/src/ui/Dockerfile
index 7bf0acbcc..00a89ded8 100755
--- a/src/ui/Dockerfile
+++ b/src/ui/Dockerfile
@@ -10,7 +10,7 @@ RUN mkdir -p /usr/share/bunkerweb/deps && \
     rm -rf /tmp/req
 
 # Install python dependencies
-RUN apk add --no-cache --virtual .build-deps g++ gcc musl-dev jpeg-dev zlib-dev libffi-dev cairo-dev pango-dev gdk-pixbuf-dev openssl-dev cargo postgresql-dev
+RUN apk add --no-cache --virtual .build-deps g++ gcc musl-dev jpeg-dev zlib-dev libffi-dev cairo-dev pango-dev gdk-pixbuf-dev openssl-dev cargo postgresql-dev file
 
 # Install python requirements
 RUN export MAKEFLAGS="-j$(nproc)" && \
@@ -76,4 +76,4 @@ USER ui:ui
 HEALTHCHECK --interval=10s --timeout=10s --start-period=30s --retries=6 CMD /usr/share/bunkerweb/helpers/healthcheck-ui.sh
 
 ENV PYTHONPATH /usr/share/bunkerweb/deps/python
-CMD ["python3", "-m", "gunicorn", "--user", "ui", "--group", "ui", "main:app", "--worker-class", "gevent", "--bind", "0.0.0.0:7000", "--graceful-timeout", "0", "--access-logfile", "-", "--error-logfile", "-"]
\ No newline at end of file
+CMD ["python3", "-m", "gunicorn", "--user", "ui", "--group", "ui", "main:app", "--worker-class", "gevent", "--bind", "0.0.0.0:7000", "--graceful-timeout", "0", "--access-logfile", "-", "--error-logfile", "-"]