diff --git a/hosts/colmena/default.nix b/hosts/colmena/default.nix
index a40ae2c..8f17f98 100644
--- a/hosts/colmena/default.nix
+++ b/hosts/colmena/default.nix
@@ -9,6 +9,10 @@ let
 in
 {
 
+  nix.settings = {
+    download-buffer-size = 524288000; # 500 MiB
+  };
+
   my = {
 
     networking = {