diff --git a/packages/material-ui-lab/src/DatePicker/shared.ts b/packages/material-ui-lab/src/DatePicker/shared.ts
index 73c845acac68da..3a41bd61026976 100644
--- a/packages/material-ui-lab/src/DatePicker/shared.ts
+++ b/packages/material-ui-lab/src/DatePicker/shared.ts
@@ -44,7 +44,7 @@ export interface BaseDatePickerProps<TDate>
    * Component that will replace default toolbar renderer.
    * @default DatePickerToolbar
    */
-  ToolbarComponent?: React.JSXElementConstructor<ToolbarComponentProps>;
+  ToolbarComponent?: React.JSXElementConstructor<ToolbarComponentProps<TDate | null>>;
   /**
    * Array of views to show.
    */
diff --git a/packages/material-ui-lab/src/DateTimePicker/shared.ts b/packages/material-ui-lab/src/DateTimePicker/shared.ts
index 3ea6ee8dcca2c4..a95e95e95e8e1a 100644
--- a/packages/material-ui-lab/src/DateTimePicker/shared.ts
+++ b/packages/material-ui-lab/src/DateTimePicker/shared.ts
@@ -67,7 +67,7 @@ export interface BaseDateTimePickerProps<TDate>
    * Component that will replace default toolbar renderer.
    * @default DateTimePickerToolbar
    */
-  ToolbarComponent?: React.JSXElementConstructor<ToolbarComponentProps>;
+  ToolbarComponent?: React.JSXElementConstructor<ToolbarComponentProps<TDate | null>>;
   /**
    * Date format, that is displaying in toolbar.
    */
diff --git a/packages/material-ui-lab/src/TimePicker/shared.tsx b/packages/material-ui-lab/src/TimePicker/shared.tsx
index 3c7516291e2390..f3cd2779612eb7 100644
--- a/packages/material-ui-lab/src/TimePicker/shared.tsx
+++ b/packages/material-ui-lab/src/TimePicker/shared.tsx
@@ -28,7 +28,7 @@ export interface BaseTimePickerProps<TDate>
    * Component that will replace default toolbar renderer.
    * @default TimePickerToolbar
    */
-  ToolbarComponent?: React.JSXElementConstructor<ToolbarComponentProps>;
+  ToolbarComponent?: React.JSXElementConstructor<ToolbarComponentProps<TDate | null>>;
   /**
    * Array of views to show.
    */
diff --git a/packages/material-ui-lab/src/internal/pickers/typings/BasePicker.tsx b/packages/material-ui-lab/src/internal/pickers/typings/BasePicker.tsx
index 58ee310d55c803..4dbeffeabcc965 100644
--- a/packages/material-ui-lab/src/internal/pickers/typings/BasePicker.tsx
+++ b/packages/material-ui-lab/src/internal/pickers/typings/BasePicker.tsx
@@ -79,7 +79,7 @@ export interface BasePickerProps<TInputValue, TDateValue> {
   /**
    * Component that will replace default toolbar renderer.
    */
-  ToolbarComponent?: React.JSXElementConstructor<ToolbarComponentProps>;
+  ToolbarComponent?: React.JSXElementConstructor<ToolbarComponentProps<TDateValue>>;
   /**
    * Date format, that is displaying in toolbar.
    */