diff --git a/.docker/Dockerfile b/.docker/Dockerfile
index 8661d9c7..ceb69bb0 100644
--- a/.docker/Dockerfile
+++ b/.docker/Dockerfile
@@ -1,6 +1,6 @@
 # OCRmyPDF
 #
-FROM ubuntu:19.04 as base
+FROM ubuntu:19.10 as base
 
 FROM base as builder
 
@@ -10,16 +10,11 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
   build-essential autoconf automake libtool \
   libleptonica-dev \
   zlib1g-dev \
-  ocrmypdf \
-  pngquant \
+  python3-setuptools \
   python3-pip \
-  python3-venv \
-  tesseract-ocr \
-  unpaper \
   wget \
   git
 
-
 # Compile and install jbig2
 # Needs libleptonica-dev, zlib1g-dev
 RUN \
@@ -31,15 +26,15 @@ RUN \
   && cd .. \
   && rm -rf jbig2
 
-RUN python3 -m venv /appenv
-
 COPY . /app
 
 WORKDIR /app
 
-RUN . /appenv/bin/activate; \
-  pip install --upgrade pip \
-  && pip install .
+RUN pip3 install \
+  -r requirements/main.txt \
+  -r requirements/webservice.txt \
+  -r requirements/test.txt \
+  .
 
 FROM base
 
@@ -53,7 +48,6 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
   zlib1g \
   pngquant \
   python3 \
-  python3-venv \
   qpdf \
   tesseract-ocr \
   tesseract-ocr-chi-sim \
@@ -62,10 +56,13 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
   tesseract-ocr-fra \
   tesseract-ocr-por \
   tesseract-ocr-spa \
-  unpaper \
-  wget
+  unpaper
+
+WORKDIR /app
+
+COPY --from=builder /usr/local/lib/python3.7/dist-packages/ /usr/local/lib/python3.7/dist-packages/
+COPY --from=builder /usr/local/bin/ocrmypdf /usr/local/bin/ocrmypdf
 
-# Copy
 COPY --from=builder /app/misc/webservice.py /app/
 
 # Copy minimal project files to get the test suite.
@@ -74,7 +71,4 @@ COPY --from=builder /app/requirements /app/requirements
 COPY --from=builder /app/tests /app/tests
 COPY --from=builder /app/src /app/src
 
-COPY --from=builder /appenv /appenv
-COPY --from=builder /usr/local /usr/local
-
-ENTRYPOINT ["/appenv/bin/ocrmypdf"]
+ENTRYPOINT ["/usr/local/bin/ocrmypdf"]
diff --git a/docs/docker.rst b/docs/docker.rst
index 4cd34d83..ed118dfc 100644
--- a/docs/docker.rst
+++ b/docs/docker.rst
@@ -117,7 +117,7 @@ The OCRmyPDF test suite is installed with image. To run it:
 
 .. code-block:: bash
 
-   docker run --entrypoint python3  jbarlow83/ocrmypdf setup.py test
+   docker run --entrypoint python3  jbarlow83/ocrmypdf -m pytest
 
 Accessing the shell
 ===================
diff --git a/requirements/main.txt b/requirements/main.txt
index 5db7550a..eec5dc7a 100644
--- a/requirements/main.txt
+++ b/requirements/main.txt
@@ -1,13 +1,10 @@
 # requirements.txt can be used to replicate the developer's build environment
 # setup.py lists a separate set of requirements that are looser to simplify
 # installation
-chardet == 3.0.4
-cffi == 1.12.2
+cffi == 1.13.2
 img2pdf == 0.3.3
 pdfminer.six == 20181108
 pikepdf == 1.6.5
 Pillow >= 6.2.0
-pycparser == 2.19
-python-xmp-toolkit == 2.0.1
-reportlab == 3.5.13
-tqdm == 4.32.1
+reportlab == 3.5.32
+tqdm == 4.37.0
diff --git a/requirements/test.txt b/requirements/test.txt
index 975325bd..58fd0fdd 100644
--- a/requirements/test.txt
+++ b/requirements/test.txt
@@ -2,7 +2,7 @@ pytest >= 5.0.0
 pytest-helpers-namespace >= 2019.1.8
 pytest-xdist >= 1.29.0  # For DumpError fix
 pytest-cov >= 2.6.1
-python-xmp-toolkit   # requires apt-get install libexempi3
+python-xmp-toolkit == 2.0.1  # requires apt-get install libexempi3
                      # or brew install exempi
 PyPDF2 >= 1.26.0
 #PyMuPDF == 1.13.4    # optional
diff --git a/requirements/webservice.txt b/requirements/webservice.txt
new file mode 100644
index 00000000..f6e3c4e6
--- /dev/null
+++ b/requirements/webservice.txt
@@ -0,0 +1 @@
+Flask >= 1, < 2
diff --git a/tests/test_completion.py b/tests/test_completion.py
index 8fdbb59a..8837fbe2 100644
--- a/tests/test_completion.py
+++ b/tests/test_completion.py
@@ -19,6 +19,11 @@ from subprocess import run, PIPE
 
 import pytest
 
+pytestmark = pytest.mark.skipif(
+    pytest.helpers.running_in_docker(),  # pylint: disable=no-member
+    reason="docker can't complete",
+)
+
 
 def test_fish():
     try: