diff --git a/ci/pipeline.yml.jinja2 b/ci/pipeline.yml.jinja2
index 2ce06f90..4d2c455d 100644
--- a/ci/pipeline.yml.jinja2
+++ b/ci/pipeline.yml.jinja2
@@ -240,7 +240,7 @@ jobs:
         type: docker-image
         source:
           repository: python
-          tag: 3-slim
+          tag: 3-slim-stretch
       platform: linux
       inputs:
       - name: tile-generator-repo