diff --git a/flake.nix b/flake.nix
index 1948c75..adf2c92 100644
--- a/flake.nix
+++ b/flake.nix
@@ -29,6 +29,9 @@
             ];
           })
           bleach
+          pyaml
+          requests
+          requests_toolbelt
           validators
         ];
       };
diff --git a/requirements.txt b/requirements.txt
index 31bb13c..979b2c7 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,3 +1,7 @@
 hy>=1
+hyrule>=1
 bleach>=6.2.0
+pyaml>=25.1.0
+requests>=2.32.3
+requests-toolbelt>=1
 validators>=0.34.0