diff --git a/api.txt b/api.txt
index 0b8e1a3c79..103cf2ace6 100644
--- a/api.txt
+++ b/api.txt
@@ -1,4 +1,4 @@
-// Signature format: 3.0
+// Signature format: 2.0
 package androidx.media3.common {
 
   public final class AdOverlayInfo {