diff --git a/sample/src/main/res/layout/fragment_we_read_demo.xml b/sample/src/main/res/layout/fragment_we_read_demo.xml
index d1d3733..91f554b 100644
--- a/sample/src/main/res/layout/fragment_we_read_demo.xml
+++ b/sample/src/main/res/layout/fragment_we_read_demo.xml
@@ -34,14 +34,13 @@
         android:valueTo="27"
         app:trackHeight="36dp"
         app:thumbRadius="18dp"
-        app:thumbTextSize="14sp"
+        app:thumbTextSize="16sp"
         app:thumbText="22"
         android:hapticFeedbackEnabled="true"
         app:ignoreGlobalHapticFeedbackSetting="true"
         app:thumbTextColor="@color/we_read_theme_color"
         app:thumbColor="@color/we_read_thumb_color"
         app:thumbShadowColor="@color/we_read_thumb_shadow_color"
-        app:thumbTextBold="true"
         android:stepSize="1"
         app:thumbWithinTrackBounds="true"
         app:enableDrawHalo="false"