diff --git a/hosts/murk/configuration.nix b/hosts/murk/configuration.nix
index 969f9c3..6f07d91 100644
--- a/hosts/murk/configuration.nix
+++ b/hosts/murk/configuration.nix
@@ -7,8 +7,11 @@ in {
     ./hardware-configuration.nix
     inputs.impermanence.nixosModules.impermanence
     "${
-      builtins.fetchTarball
-      "https://github.com/nix-community/disko/archive/master.tar.gz"
+      builtins.fetchTarball {
+        url =
+          "https://github.com/nix-community/disko/archive/refs/tags/v1.12.0.tar.gz";
+        sha256 = "0wbx518d2x54yn4xh98cgm65wvj0gpy6nia6ra7ns4j63hx14fkq";
+      }
     }/module.nix"
     ./disk-config.nix
     # (inputs.nixpkgs