diff --git a/flake.nix b/flake.nix
index a76613a4..5e4d5343 100644
--- a/flake.nix
+++ b/flake.nix
@@ -2,6 +2,7 @@
   description = "yukkop's nix utilities";
 
   nixConfig = {
+    http2 = false;
     extra-substituters = [
       "https://cache.nixos.org"
       "https://cache.hectic-lab.com/hectic"