diff --git a/Dockerfile b/Dockerfile
index 3378f935..dfb1228a 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -7,18 +7,29 @@ ENV UID=1337 \
 COPY . /opt/mautrix-telegram
 WORKDIR /opt/mautrix-telegram
 RUN apk add --no-cache \
-      python3-dev \
-      build-base \
       py3-virtualenv \
       py3-pillow \
       py3-aiohttp \
       py3-lxml \
       py3-magic \
-      py3-numpy \
-      py3-asn1crypto \
       py3-sqlalchemy \
       py3-markdown \
       py3-psycopg2 \
+      # Indirect dependencies
+      py3-numpy \
+      py3-asn1crypto \
+      py3-future \
+      py3-markupsafe \
+      py3-mako \
+      py3-decorator \
+      py3-dateutil \
+      py3-idna \
+      py3-six \
+      py3-asn1 \
+      py3-rsa \
+      # Other dependencies
+      python3-dev \
+      build-base \
       ffmpeg \
       ca-certificates \
       su-exec \