diff --git a/Dockerfile b/Dockerfile
index f103e44f9..18d923c7b 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -34,7 +34,7 @@ WORKDIR /$appname
 # this will make sure than the dependencies is cached
 COPY poetry.lock pyproject.toml /$appname/
 RUN poetry config virtualenvs.create false \
-    && poetry install -vv --no-root --no-dev --no-interaction \
+    && poetry install -vv --no-root --without dev --no-interaction \
     && poetry show -v
 
 # copy source code ONLY after installing dependencies
@@ -45,7 +45,7 @@ COPY clear_prometheus_multiproc /$appname/clear_prometheus_multiproc
 
 # install fence
 RUN poetry config virtualenvs.create false \
-    && poetry install -vv --no-dev --no-interaction \
+    && poetry install -vv --without dev --no-interaction \
     && poetry show -v
 
 RUN COMMIT=`git rev-parse HEAD` && echo "COMMIT=\"${COMMIT}\"" >$appname/version_data.py \