diff --git a/app/src/main/res/values-v27/styles.xml b/app/src/main/res/values-v27/styles.xml
index 09e827ecd..f888ae539 100644
--- a/app/src/main/res/values-v27/styles.xml
+++ b/app/src/main/res/values-v27/styles.xml
@@ -1,14 +1,14 @@
 <?xml version="1.0" encoding="utf-8"?>
 <resources>
 
-    <style name="Base.V21.DarkTheme" parent="Base.V7.DarkTheme">
+    <style name="Base.V27.DarkTheme" parent="Base.V7.DarkTheme">
         <item name="android:navigationBarColor">@color/dark_background_color</item>
         <item name="android:windowLightNavigationBar">false</item>
     </style>
-    <style name="Base.DarkTheme" parent="Base.V21.DarkTheme" />
+    <style name="Base.DarkTheme" parent="Base.V27.DarkTheme" />
 
-    <style name="Base.V21.BlackTheme" parent="Base.V7.BlackTheme">
+    <style name="Base.V27.BlackTheme" parent="Base.V7.BlackTheme">
         <item name="android:navigationBarColor">@android:color/black</item>
     </style>
-    <style name="Base.BlackTheme" parent="Base.V21.BlackTheme" />
+    <style name="Base.BlackTheme" parent="Base.V27.BlackTheme" />
 </resources>