diff --git a/.dockerignore b/.dockerignore
new file mode 100644
index 0000000..d419542
--- /dev/null
+++ b/.dockerignore
@@ -0,0 +1,6 @@
+.editorconfig
+.codeclimate.yml
+*.png
+*.md
+.venv
+maubot/management/frontend/node_modules
diff --git a/Dockerfile b/Dockerfile
index 56ac4c3..ee6fa68 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -3,9 +3,15 @@ FROM node:12 AS frontend-builder
 COPY ./maubot/management/frontend /frontend
 RUN cd /frontend && yarn --prod && yarn build
 
-FROM alpine:3.11
+FROM alpine:3.12
+
+RUN echo $'\
+@edge http://dl-cdn.alpinelinux.org/alpine/edge/main\n\
+@edge http://dl-cdn.alpinelinux.org/alpine/edge/testing\n\
+@edge http://dl-cdn.alpinelinux.org/alpine/edge/community' >> /etc/apk/repositories
 
 RUN apk add --no-cache \
+        python3 py3-pip py3-setuptools py3-wheel \
         ca-certificates \
         su-exec \
         py3-aiohttp \
@@ -19,23 +25,38 @@ RUN apk add --no-cache \
         py3-click \
         py3-packaging \
         py3-markdown \
+        py3-alembic@edge \
+        py3-cssselect@edge \
+        py3-commonmark@edge \
+        py3-pygments \
+        py3-tz@edge \
+        py3-tzlocal@edge \
+        py3-regex@edge \
+        py3-wcwidth@edge \
+        # encryption
+        py3-cffi \
+        olm-dev \
+        py3-pycryptodome \
+        py3-unpaddedbase64 \
+        py3-future \
+        # plugin deps
         py3-pillow \
         py3-magic \
         py3-feedparser \
         py3-dateutil \
-        py3-lxml
-# TODO remove pillow, magic, feedparser and lxml when maubot supports installing dependencies
+        py3-lxml \
+        py3-gitlab@edge
+# TODO remove pillow, magic, feedparser, lxml and gitlab when maubot supports installing dependencies
 
 COPY requirements.txt /opt/maubot/requirements.txt
+COPY optional-requirements.txt /opt/maubot/optional-requirements.txt
 WORKDIR /opt/maubot
-RUN apk add --virtual .build-deps \
-        python3-dev \
-        build-base \
-        git \
-    && pip3 install -r requirements.txt \
+RUN apk add --virtual .build-deps python3-dev build-base git \
+    && sed -Ei 's/psycopg2-binary.+//' optional-requirements.txt \
+    && pip3 install -r requirements.txt -r optional-requirements.txt \
         dateparser langdetect python-gitlab pyquery \
     && apk del .build-deps
-# TODO also remove dateparser, langdetect, python-gitlab and pyquery when maubot supports installing dependencies
+# TODO also remove dateparser, langdetect and pyquery when maubot supports installing dependencies
 
 COPY . /opt/maubot
 COPY ./docker/mbc.sh /usr/local/bin/mbc
diff --git a/Dockerfile.ci b/Dockerfile.ci
index 0fc5f35..051bd10 100644
--- a/Dockerfile.ci
+++ b/Dockerfile.ci
@@ -1,6 +1,12 @@
-FROM alpine:3.11
+FROM alpine:3.12
+
+RUN echo $'\
+@edge http://dl-cdn.alpinelinux.org/alpine/edge/main\n\
+@edge http://dl-cdn.alpinelinux.org/alpine/edge/testing\n\
+@edge http://dl-cdn.alpinelinux.org/alpine/edge/community' >> /etc/apk/repositories
 
 RUN apk add --no-cache \
+        python3 py3-pip py3-setuptools py3-wheel \
         ca-certificates \
         su-exec \
         py3-aiohttp \
@@ -14,22 +20,37 @@ RUN apk add --no-cache \
         py3-click \
         py3-packaging \
         py3-markdown \
+        py3-alembic@edge \
+        py3-cssselect@edge \
+        py3-commonmark@edge \
+        py3-pygments \
+        py3-tz@edge \
+        py3-tzlocal@edge \
+        py3-regex@edge \
+        py3-wcwidth@edge \
+        # encryption
+        py3-cffi \
+        olm-dev \
+        py3-pycryptodome \
+        py3-unpaddedbase64 \
+        py3-future \
+        # plugin deps
         py3-pillow \
         py3-magic \
         py3-feedparser \
-        py3-lxml
-# TODO remove pillow, magic, feedparser and lxml when maubot supports installing dependencies
+        py3-lxml \
+        py3-gitlab@edge
+# TODO remove pillow, magic, feedparser, lxml and gitlab when maubot supports installing dependencies
 
 COPY requirements.txt /opt/maubot/requirements.txt
+COPY optional-requirements.txt /opt/maubot/optional-requirements.txt
 WORKDIR /opt/maubot
-RUN apk add --virtual .build-deps \
-        python3-dev \
-        build-base \
-        git \
-    && pip3 install -r requirements.txt \
+RUN apk add --virtual .build-deps python3-dev build-base git \
+    && sed -Ei 's/psycopg2-binary.+//' optional-requirements.txt \
+    && pip3 install -r requirements.txt -r optional-requirements.txt \
         dateparser langdetect python-gitlab pyquery \
     && apk del .build-deps
-# TODO also remove dateparser, langdetect, python-gitlab and pyquery when maubot supports installing dependencies
+# TODO also remove dateparser, langdetect and pyquery when maubot supports installing dependencies
 
 COPY . /opt/maubot
 COPY ./docker/mbc.sh /usr/local/bin/mbc