diff --git a/nixng/containers/hydra/hydra.nix b/nixng/containers/hydra/hydra.nix
index 213cff8..ea50480 100644
--- a/nixng/containers/hydra/hydra.nix
+++ b/nixng/containers/hydra/hydra.nix
@@ -29,6 +29,7 @@ makeSystem {
               "https://gitlab.com"
               "https://git.sr.ht"
               "https://raw.githubusercontent.com"
+              "https://patch-diff.githubusercontent.com"
               "https://media.forgecdn.net"
             ];