diff --git a/src/components/RichTextEditor/RichTextEditor.tsx b/src/components/RichTextEditor/RichTextEditor.tsx
index 1a0d063f9..b6cba3e1b 100644
--- a/src/components/RichTextEditor/RichTextEditor.tsx
+++ b/src/components/RichTextEditor/RichTextEditor.tsx
@@ -170,7 +170,7 @@ const RichTextEditor: React.FC<RichTextEditorProps> = ({
             quote: Quote,
             strikethrough: createGenericInlineTool({
               sanitize: {
-                s: true
+                s: {}
               },
               shortcut: "CMD+S",
               tagName: "s",
diff --git a/src/storybook/Decorator.tsx b/src/storybook/Decorator.tsx
index 46b6ec656..66e548747 100644
--- a/src/storybook/Decorator.tsx
+++ b/src/storybook/Decorator.tsx
@@ -17,7 +17,7 @@ export const Decorator = storyFn => (
     >
       <DateProvider value={+new Date("2018-08-07T14:30:44+00:00")}>
         <TimezoneProvider value="America/New_York">
-          <ThemeProvider isDefaultDark={true}>
+          <ThemeProvider isDefaultDark={false}>
             <MessageManagerProvider>
               <div
                 style={{