diff --git a/pycsw/core/pygeofilter_evaluate.py b/pycsw/core/pygeofilter_evaluate.py
index e6211d1a8..ef77b61a8 100644
--- a/pycsw/core/pygeofilter_evaluate.py
+++ b/pycsw/core/pygeofilter_evaluate.py
@@ -42,8 +42,8 @@
 
 
 class PycswFilterEvaluator(SQLAlchemyFilterEvaluator):
-    def __init__(self, field_mapping=None, dbtype='sqlite'):
-        super().__init__(field_mapping)
+    def __init__(self, field_mapping=None, dbtype='sqlite', undefined_as_null=None):
+        super().__init__(field_mapping, undefined_as_null=undefined_as_null)
         self._pycsw_dbtype = dbtype
 
     @handle(ast.BBox)
diff --git a/requirements-standalone.txt b/requirements-standalone.txt
index c746f02ca..c180df963 100644
--- a/requirements-standalone.txt
+++ b/requirements-standalone.txt
@@ -2,4 +2,4 @@ SQLAlchemy<2.0.0
 Flask
 pygeofilter
 PyYAML
-pygeoif==0.7
+pygeoif