diff --git a/reflex/components/el/elements/forms.py b/reflex/components/el/elements/forms.py
index d4a8891a8..7cb776ee9 100644
--- a/reflex/components/el/elements/forms.py
+++ b/reflex/components/el/elements/forms.py
@@ -102,7 +102,7 @@ class Fieldset(Element):
     name: Var[Union[str, int, bool]]
 
 
-def on_submit_event_spec() -> Tuple[Var[Dict[str, str]]]:
+def on_submit_event_spec() -> Tuple[Var[Dict[str, Any]]]:
     """Event handler spec for the on_submit event.
 
     Returns:
diff --git a/reflex/components/el/elements/forms.pyi b/reflex/components/el/elements/forms.pyi
index 1b923ae87..2f889bc38 100644
--- a/reflex/components/el/elements/forms.pyi
+++ b/reflex/components/el/elements/forms.pyi
@@ -270,7 +270,7 @@ class Fieldset(Element):
         """
         ...
 
-def on_submit_event_spec() -> Tuple[Var[Dict[str, str]]]: ...
+def on_submit_event_spec() -> Tuple[Var[Dict[str, Any]]]: ...
 
 class Form(BaseHTML):
     @overload
@@ -337,7 +337,7 @@ class Form(BaseHTML):
         on_mouse_over: Optional[EventType[[]]] = None,
         on_mouse_up: Optional[EventType[[]]] = None,
         on_scroll: Optional[EventType[[]]] = None,
-        on_submit: Optional[EventType[Dict[str, str]]] = None,
+        on_submit: Optional[EventType[Dict[str, Any]]] = None,
         on_unmount: Optional[EventType[[]]] = None,
         **props,
     ) -> "Form":
diff --git a/reflex/components/radix/primitives/form.pyi b/reflex/components/radix/primitives/form.pyi
index 01e77e85c..2139f0c23 100644
--- a/reflex/components/radix/primitives/form.pyi
+++ b/reflex/components/radix/primitives/form.pyi
@@ -129,7 +129,7 @@ class FormRoot(FormComponent, HTMLForm):
         on_mouse_over: Optional[EventType[[]]] = None,
         on_mouse_up: Optional[EventType[[]]] = None,
         on_scroll: Optional[EventType[[]]] = None,
-        on_submit: Optional[EventType[Dict[str, str]]] = None,
+        on_submit: Optional[EventType[Dict[str, Any]]] = None,
         on_unmount: Optional[EventType[[]]] = None,
         **props,
     ) -> "FormRoot":
@@ -594,7 +594,7 @@ class Form(FormRoot):
         on_mouse_over: Optional[EventType[[]]] = None,
         on_mouse_up: Optional[EventType[[]]] = None,
         on_scroll: Optional[EventType[[]]] = None,
-        on_submit: Optional[EventType[Dict[str, str]]] = None,
+        on_submit: Optional[EventType[Dict[str, Any]]] = None,
         on_unmount: Optional[EventType[[]]] = None,
         **props,
     ) -> "Form":
@@ -716,7 +716,7 @@ class FormNamespace(ComponentNamespace):
         on_mouse_over: Optional[EventType[[]]] = None,
         on_mouse_up: Optional[EventType[[]]] = None,
         on_scroll: Optional[EventType[[]]] = None,
-        on_submit: Optional[EventType[Dict[str, str]]] = None,
+        on_submit: Optional[EventType[Dict[str, Any]]] = None,
         on_unmount: Optional[EventType[[]]] = None,
         **props,
     ) -> "Form":