diff --git a/flake.nix b/flake.nix
index 089d969..a87895a 100644
--- a/flake.nix
+++ b/flake.nix
@@ -23,6 +23,7 @@
             nodePackages.nodemon
             nodePackages.typescript-language-server
             pandoc
+            yaml-language-server
           ];
         };
         formatter = pkgs.alejandra;