diff --git a/nixosConfigurations/muede-lpt2/constellation-swarm.nix b/nixosConfigurations/muede-lpt2/constellation-swarm.nix
index 7e33746..1b18373 100644
--- a/nixosConfigurations/muede-lpt2/constellation-swarm.nix
+++ b/nixosConfigurations/muede-lpt2/constellation-swarm.nix
@@ -75,7 +75,7 @@ in
         singleHostSwarm = true;
         ci-runner = {
           enable = true;
-          concurrency = 2;
+          concurrency = 1;
         };
       };
     };