diff --git a/django_seq/segmentation.py b/django_seq/segmentation.py
index 99d68d5..00a719c 100644
--- a/django_seq/segmentation.py
+++ b/django_seq/segmentation.py
@@ -77,7 +77,7 @@ def evaluate_f(
         instance: Model,
         segment: F,
     ) -> str:
-        f_name_split = segment.name.split(LOOKUP_SEP)
+        f_name_split = segment.name.split(LOOKUP_SEP)  # type: ignore[attr-defined]
         acc = instance
         for f_name in f_name_split:
             acc = getattr(acc, f_name)
diff --git a/requirements/requirements-docs.txt b/requirements/requirements-docs.txt
index 94b0bed..7729073 100644
--- a/requirements/requirements-docs.txt
+++ b/requirements/requirements-docs.txt
@@ -1,3 +1,3 @@
-pydata-sphinx-theme==0.16.1
+pydata-sphinx-theme==0.19.0
 Sphinx==9.1.0
 sphinx-copybutton==0.5.2