diff --git a/.docker/api/Dockerfile b/.docker/api/Dockerfile
index cc21570fa5993e4e7b678de1e066f656edf69510..a36e0a33aa12c309451a79d4bbfcf2e187123bd4 100644
--- a/.docker/api/Dockerfile
+++ b/.docker/api/Dockerfile
@@ -19,6 +19,10 @@ COPY requirements.txt /requirements.txt
 RUN pip install --upgrade pip
 RUN pip install -r /requirements.txt
 
+# fix for django_media_fixtures: Django removed django.utils.encoding.smart_text alias in Django 4.0
+# see also https://github.com/adrianoveiga/django-media-fixtures/pull/6
+RUN sed -i -e 's/smart_text/smart_str/g' /usr/local/lib/python3.9/site-packages/django_media_fixtures/management/commands/collectmedia.py
+
 VOLUME ["/opt/okuna-api"]
 
 EXPOSE 80