diff --git a/nix/ci.nix b/nix/ci.nix
index b289475..a0193d6 100644
--- a/nix/ci.nix
+++ b/nix/ci.nix
@@ -24,10 +24,10 @@ dimension "Nixpkgs version" {
       isReferenceNixpkgs = true;
       enableDoc = true;
     };
-    "nixos-unstable" = {
-      nixpkgsSource = "nixos-unstable";
-      enableDoc = true;
-    };
+    # "nixos-unstable" = {
+    #   nixpkgsSource = "nixos-unstable";
+    #   enableDoc = true;
+    # };
   } (
     _name: { nixpkgsSource, isReferenceNixpkgs ? false, enableDoc ? true, nixosTestIsPerl ? false }: