diff --git a/datasette/utils.py b/datasette/utils.py
index 19f3d792..033f2c22 100644
--- a/datasette/utils.py
+++ b/datasette/utils.py
@@ -266,7 +266,7 @@ def make_dockerfile(files, metadata_file, extra_options, branch, template_dir, p
         install = ['datasette'] + list(install)
 
     return '''
-FROM python:3.6-slim-stretch
+FROM python:3.6
 COPY . /app
 WORKDIR /app
 {spatialite_extras}