diff --git a/Dockerfile b/Dockerfile
index 5b0d541..c636616 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,5 +1,7 @@
 FROM alpine:3.8 as builder
 
+ENV VERSION=v0.4.0
+
 RUN apk --no-cache add \
     gcc \
     musl-dev \
@@ -28,16 +30,21 @@ RUN apk --no-cache add \
     py3-numpy \
     py3-psycopg2
 
-RUN pip3 install --upgrade \
-    https://github.com/tulir/mautrix-telegram/tarball/master#egg=mautrix_telegram[all]
+RUN mkdir /tmp/mautrix-telegram
+RUN wget -qO- https://github.com/tulir/mautrix-telegram/archive/$VERSION.tar.gz | tar -xz --strip 1 -C /tmp/mautrix-telegram
+RUN cd /tmp/mautrix-telegram && pip3 install -r requirements.txt -r optional-requirements.txt
 
 FROM thallian/confd-env:latest
 
+ENV FFMPEG_BINARY=/usr/bin/ffmpeg
+
 RUN addgroup -g 2222 matrix-bridge
 RUN adduser -h /var/lib/matrix-bridge -u 2222 -D -G matrix-bridge matrix-bridge
 
 COPY --from=builder /usr/lib/python3.6/site-packages /usr/lib/python3.6/site-packages
 COPY --from=builder /usr/bin/alembic /usr/bin/alembic
+COPY --from=builder /tmp/mautrix-telegram/alembic /var/lib/matrix-bridge/alembic
+COPY --from=builder /tmp/mautrix-telegram/alembic.ini /var/lib/matrix-bridge/alembic.ini
 
 RUN apk --no-cache add \
     ca-certificates \