diff --git a/python3.yaml b/python3.yaml
index d6863cd..2c6ddeb 100644
--- a/python3.yaml
+++ b/python3.yaml
@@ -86,25 +86,25 @@ data:
         rpms:
             python-rpm-macros:
                 rationale: Build and runtime dependency of python3-devel
-                ref: master
+                ref: f28
                 buildorder: 10
             python-rpm-generators:
                 rationale: Runtime dependency of python3-devel
-                ref: master
+                ref: f28
                 buildorder: 10
             python-wheel:
                 rationale: Used for unbundling of pip and setuptools
-                ref: master
+                ref: f28
                 buildorder: 10
             python-setuptools:
                 rationale: Python Packaging ecosystem
-                ref: master
+                ref: f28
                 buildorder: 20
             python-pip:
                 rationale: Python Packaging ecosystem
-                ref: master
+                ref: f28
                 buildorder: 30
             python3:
                 rationale: Main Python language interpreter
-                ref: master
+                ref: f28
                 buildorder: 40