diff --git a/RELEASENOTES.md b/RELEASENOTES.md
index 26cbb99137..dfbf06f4d2 100644
--- a/RELEASENOTES.md
+++ b/RELEASENOTES.md
@@ -30,6 +30,8 @@
   Also change `IcyInfo.rawMetadata` from `String` to `byte[]` to allow
   developers to handle data that's neither UTF-8 nor ISO-8859-1
   ([#6753](https://github.com/google/ExoPlayer/issues/6753)).
+* AV1 extension: Fix ProGuard rules
+  ([6773](https://github.com/google/ExoPlayer/issues/6773)).
 
 ### 2.11.0 (2019-12-11) ###
 
diff --git a/library/core/proguard-rules.txt b/library/core/proguard-rules.txt
index 67646be956..bfd691259b 100644
--- a/library/core/proguard-rules.txt
+++ b/library/core/proguard-rules.txt
@@ -5,6 +5,10 @@
 -keepclassmembers class com.google.android.exoplayer2.ext.vp9.LibvpxVideoRenderer {
   <init>(long, android.os.Handler, com.google.android.exoplayer2.video.VideoRendererEventListener, int);
 }
+-dontnote com.google.android.exoplayer2.ext.av1.Libgav1VideoRenderer
+-keepclassmembers class com.google.android.exoplayer2.ext.av1.Libgav1VideoRenderer {
+  <init>(long, android.os.Handler, com.google.android.exoplayer2.video.VideoRendererEventListener, int);
+}
 -dontnote com.google.android.exoplayer2.ext.opus.LibopusAudioRenderer
 -keepclassmembers class com.google.android.exoplayer2.ext.opus.LibopusAudioRenderer {
   <init>(android.os.Handler, com.google.android.exoplayer2.audio.AudioRendererEventListener, com.google.android.exoplayer2.audio.AudioProcessor[]);