diff --git a/14.0.Dockerfile b/14.0.Dockerfile
index 5c76fb15cec5aaae1447a26fc6947b3609139a04..635f65762b68ad09f3ff7c8bd8ae2449d52b0236 100644
--- a/14.0.Dockerfile
+++ b/14.0.Dockerfile
@@ -23,7 +23,7 @@ RUN set -x; \
         apt-get install -y --no-install-recommends postgresql-client &&\
         apt-get install -y --no-install-recommends ${APT_DEPS} &&\
         pip3 install -r https://raw.githubusercontent.com/OCA/OCB/14.0/requirements.txt &&\
-        pip3 install phonenumbers simplejson gevent==20.12.1 zxcvbn &&\ 
+        pip3 install phonenumbers simplejson gevent==20.12.1 PyYAML zxcvbn &&\ 
         apt-get -y purge ${APT_DEPS} &&\
         apt-get -y autoremove &&\
         rm -rf /var/lib/apt/lists/* wkhtmltox.deb