diff --git a/flake.nix b/flake.nix
index 2c07b0c..43438b5 100644
--- a/flake.nix
+++ b/flake.nix
@@ -34,9 +34,7 @@
 
             cargoLock = {
               lockFile = ./Cargo.lock;
-              outputHashes = {
-                "smithay-0.3.0" = "sha256-meEbYmSGQbaSbP5t55R1C/c9KNKvk20wDhPBCsT7kOY=";
-              };
+              allowBuiltinFetchGit = true;
             };
 
             postPatch = ''