diff --git a/docker/Dockerfile b/docker/Dockerfile
index 9ba06cb5..60ecdb6c 100644
--- a/docker/Dockerfile
+++ b/docker/Dockerfile
@@ -25,6 +25,8 @@ RUN pip install --no-cache-dir --upgrade pip \
         pymysql>=1.0.0 \
         psycopg2-binary \
         gunicorn \
+        werkzeug==0.16.0 \
+        markupsafe==2.0.1 \
     && rm -rf /terracotta
 
 COPY docker/resources /