diff --git a/pkgs/development/python-modules/pyhanko/default.nix b/pkgs/development/python-modules/pyhanko/default.nix
index 473a61694bc5..e82fe9b72499 100644
--- a/pkgs/development/python-modules/pyhanko/default.nix
+++ b/pkgs/development/python-modules/pyhanko/default.nix
@@ -63,11 +63,11 @@ buildPythonPackage (finalAttrs: {
   dependencies = [
     asn1crypto
     cryptography
+    lxml
     pyhanko-certvalidator
     pyyaml
     requests
     tzlocal
-    lxml
   ];
 
   optional-dependencies = {