diff --git a/modules/roles/base.nix b/modules/roles/base.nix
index 8d812de..96e0f42 100644
--- a/modules/roles/base.nix
+++ b/modules/roles/base.nix
@@ -158,6 +158,7 @@
           "flakes"
         ];
         auto-optimise-store = true;
+        http2 = false;
         substituters = [ "https://cache.sinerva.eu" ];
         trusted-public-keys = [ "cache.sinerva.eu:TaIhyAKozO/r88EBWMSdbp+TB0YlcXT/EADunYoYLVc=" ];
       };