diff --git a/Dockerfile b/Dockerfile
index 0132a114..c3db1072 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -51,9 +51,12 @@ RUN mkdir /config /downloads && ln -snf /usr/share/zoneinfo/${TZ} /etc/localtime
   ARCH="$(dpkg --print-architecture)" && \
   EXTRA_PACKAGES="" && \
   if [ "$ARCH" = "amd64" ]; then EXTRA_PACKAGES="intel-media-va-driver i965-va-driver libmfx-gen1.2"; fi && \
-  apt-get install -y --no-install-recommends \
+  apt-get install -y --no-install-recommends locales \
   bash mkvtoolnix patch aria2 curl ca-certificates xz-utils git sqlite3 tzdata file libmagic1 vainfo ${EXTRA_PACKAGES} \
   && useradd -u ${USER_ID:-1000} -U -d /app -s /bin/bash app \
+  sed -i -e 's/# en_US.UTF-8 UTF-8/en_US.UTF-8 UTF-8/' /etc/locale.gen && \
+  dpkg-reconfigure --frontend=noninteractive locales && \
+  update-locale LANG=en_US.UTF-8 \
   && rm -rf /var/lib/apt/lists/*
 
 COPY entrypoint.sh /
@@ -70,6 +73,9 @@ COPY --from=denoland/deno:latest /usr/bin/deno /usr/bin/deno
 COPY --chown=app:app ./healthcheck.sh /usr/local/bin/healthcheck
 
 ENV PATH="/opt/python/bin:$PATH"
+ENV LANG=en_US.UTF-8
+ENV LANGUAGE=en_US:en
+ENV LC_ALL=en_US.UTF-8
 
 RUN chown -R app:app /config /downloads && \
   chmod +x /usr/local/bin/healthcheck /usr/bin/mp4box /usr/bin/ffmpeg /usr/bin/ffprobe /usr/bin/deno