diff --git a/jobs.nix b/jobs.nix
index d82d35b..7c3a4ac 100644
--- a/jobs.nix
+++ b/jobs.nix
@@ -112,6 +112,10 @@ with lib;
       bup index "$dir"
       bup save -n postgresql "$dir" --strip-path=/tmp
       echo done
+
+      echo pruning...
+      bup prune-older --keep-all-for 6m --keep-monthlies-for 2y --unsafe
+      echo done
     '';
   };