diff --git a/packages/perseus/src/widgets/graded-group/graded-group.tsx b/packages/perseus/src/widgets/graded-group/graded-group.tsx
index 6d31abc5f7..cf96cfecf6 100644
--- a/packages/perseus/src/widgets/graded-group/graded-group.tsx
+++ b/packages/perseus/src/widgets/graded-group/graded-group.tsx
@@ -102,7 +102,10 @@ type State = {
 // PropsFor<Component> type takes defaultProps into account, which is important
 // because PerseusGradedGroupWidgetOptions has optional fields which receive defaults
 // via defaultProps.
-0 as any as WidgetProps<PerseusGradedGroupWidgetOptions, PerseusGradedGroupRubric> satisfies PropsFor<typeof GradedGroup>;
+0 as any as WidgetProps<
+    PerseusGradedGroupWidgetOptions,
+    PerseusGradedGroupRubric
+> satisfies PropsFor<typeof GradedGroup>;
 
 // A Graded Group is more or less a Group widget that displays a check
 // answer button below the rendered content. When clicked, the widget grades
diff --git a/packages/perseus/src/widgets/matrix/matrix.tsx b/packages/perseus/src/widgets/matrix/matrix.tsx
index 0c42f185d2..84f9065776 100644
--- a/packages/perseus/src/widgets/matrix/matrix.tsx
+++ b/packages/perseus/src/widgets/matrix/matrix.tsx
@@ -125,7 +125,10 @@ type ExternalProps = WidgetProps<
 // defaultProps into account, which is important because
 // PerseusMatrixWidgetOptions has optional fields which receive defaults via
 // defaultProps.
-0 as any as WidgetProps<PerseusMatrixWidgetOptions, PerseusMatrixRubric> satisfies PropsFor<typeof Matrix>;
+0 as any as WidgetProps<
+    PerseusMatrixWidgetOptions,
+    PerseusMatrixRubric
+> satisfies PropsFor<typeof Matrix>;
 
 type Props = ExternalProps & {
     onChange: (