diff --git a/Dockerfile b/Dockerfile
index a7698d3..c687950 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -110,10 +110,10 @@ ARG odoo_version
 
 # Install Odoo requirements (use ADD for correct layer caching).
 # We use requirements from OCB for easier maintenance of older versions.
-# We use no-binary for psycopg2 because its binary wheels are sometimes broken
-# and not very portable.
 ADD https://raw.githubusercontent.com/OCA/OCB/$odoo_version/requirements.txt /tmp/ocb-requirements.txt
-RUN pip install --no-cache-dir --no-binary psycopg2 -r /tmp/ocb-requirements.txt
+RUN pip install --no-cache-dir \
+      -r /tmp/ocb-requirements.txt \
+      packaging
 
 # Install other test requirements.
 # - coverage