diff --git a/pypika/terms.py b/pypika/terms.py
index a277e1a5..ad605b89 100644
--- a/pypika/terms.py
+++ b/pypika/terms.py
@@ -104,11 +104,11 @@ def wrap_constant(
 
     @staticmethod
     def wrap_json(
-        val: Union["Term", "QueryBuilder", "Interval", None, str, int, bool], wrapper_cls=None
-    ) -> Union["Term", "QueryBuilder", "Interval", "NullValue", "ValueWrapper", "JSON"]:
+        val: Union["Term", "QueryBuilder", None, str, int, bool], wrapper_cls=None
+    ) -> Union["Term", "QueryBuilder", "NullValue", "ValueWrapper", "JSON"]:
         from .queries import QueryBuilder
 
-        if isinstance(val, (Term, QueryBuilder, Interval)):
+        if isinstance(val, (Term, QueryBuilder)):
             return val
         if val is None:
             return NullValue()
@@ -1614,7 +1614,7 @@ def get_special_params_sql(self, **kwargs: Any) -> Optional[str]:
         return None
 
 
-class Interval(Node):
+class Interval(Term):
     templates = {
         # PostgreSQL, Redshift and Vertica require quotes around the expr and unit e.g. INTERVAL '1 week'
         Dialects.POSTGRESQL: "INTERVAL '{expr} {unit}'",