diff --git a/src/native-common/RootView.tsx b/src/native-common/RootView.tsx
index 44238fde..89362041 100644
--- a/src/native-common/RootView.tsx
+++ b/src/native-common/RootView.tsx
@@ -139,7 +139,7 @@ abstract class BaseRootView<P extends BaseRootViewProps> extends React.Component
             <RN.View
                 style={ _styles.liveRegionContainer as RN.StyleProp<RN.ViewStyle> }
                 accessibilityLabel={ this.state.announcementText }
-                accessibilityLiveRegion={ AccessibilityUtil.accessibilityLiveRegionToString(Types.AccessibilityLiveRegion.Polite) }
+                accessibilityLiveRegion={ AccessibilityUtil.accessibilityLiveRegionToString(Types.AccessibilityLiveRegion.Assertive) }
             />
         );
     }
diff --git a/src/web/AccessibilityAnnouncer.tsx b/src/web/AccessibilityAnnouncer.tsx
index 58b30c10..c90b67b9 100644
--- a/src/web/AccessibilityAnnouncer.tsx
+++ b/src/web/AccessibilityAnnouncer.tsx
@@ -109,7 +109,7 @@ export class AccessibilityAnnouncer extends React.Component<{}, AccessibilityAnn
         return (
             <div
                 style={ _styles.liveRegionContainer as any }
-                aria-live={ AccessibilityUtil.accessibilityLiveRegionToString(Types.AccessibilityLiveRegion.Polite) }
+                aria-live={ AccessibilityUtil.accessibilityLiveRegionToString(Types.AccessibilityLiveRegion.Assertive) }
                 aria-atomic={ 'true' }
                 aria-relevant={ 'additions text' }
             >
diff --git a/src/windows/AccessibilityAnnouncer.tsx b/src/windows/AccessibilityAnnouncer.tsx
index d4d79c4a..9765b79b 100644
--- a/src/windows/AccessibilityAnnouncer.tsx
+++ b/src/windows/AccessibilityAnnouncer.tsx
@@ -62,7 +62,7 @@ export class AccessibilityAnnouncer extends React.Component<{}, {}> {
             <RN.View
                 ref={ this._onViewRef }
                 style={ _styles.liveRegionContainer as RN.StyleProp<RN.ViewStyle> }
-                accessibilityLiveRegion={ AccessibilityUtil.accessibilityLiveRegionToString(Types.AccessibilityLiveRegion.Polite) }
+                accessibilityLiveRegion={ AccessibilityUtil.accessibilityLiveRegionToString(Types.AccessibilityLiveRegion.Assertive) }
             />
         );
     }