diff --git a/service/lib/agama/software/manager.rb b/service/lib/agama/software/manager.rb
index 4ca17754c2..4cdf82d899 100644
--- a/service/lib/agama/software/manager.rb
+++ b/service/lib/agama/software/manager.rb
@@ -510,6 +510,9 @@ def update_repositories(new_product)
         else
           # delete all, the #probe call will add the new repos
           repositories.delete_all
+          # deleting happens only in memory, to really delete the caches we need
+          # to write the repository setup to the disk
+          Yast::Pkg.SourceSaveAll
         end
       end
     end