diff --git a/flake.nix b/flake.nix
index 13d0e67..4e4ae9e 100644
--- a/flake.nix
+++ b/flake.nix
@@ -76,9 +76,19 @@
                         buildInputs = old.buildInputs ++ [ pkgs.python3Packages.setuptools ];
                       }
                     );
+                    pydocstyle = super.pydocstyle.overridePythonAttrs (
+                      old: {
+                        buildInputs = old.buildInputs ++ [
+                          pkgs.python3Packages.poetry
+                        ];
+                      }
+                    );
                     pydocstringformatter = super.pydocstringformatter.overridePythonAttrs (
                       old: {
-                        buildInputs = old.buildInputs ++ [ pkgs.python3Packages.setuptools ];
+                        buildInputs = old.buildInputs ++ [
+                          pkgs.python3Packages.poetry
+                          pkgs.python3Packages.setuptools
+                        ];
                       }
                     );
                     asyncdbus = super.asyncdbus.overridePythonAttrs (