diff --git a/roles/repositories/files/preferences.d/10-testing b/roles/repositories/files/preferences.d/10-testing
new file mode 100644
--- /dev/null
+++ b/roles/repositories/files/preferences.d/10-testing
@@ -0,0 +1,3 @@
+Package: *
+Pin: release a=testing
+Pin-Priority: 900