diff --git a/RELEASE-NOTES.txt b/RELEASE-NOTES.txt
index 8604bb189f..fc42063ed6 100644
--- a/RELEASE-NOTES.txt
+++ b/RELEASE-NOTES.txt
@@ -5,6 +5,7 @@ Unreleased
 1.109.1
 ---
 * [***] Fix issue when backspacing in an empty Paragraph block [https://github.com/wordpress-mobile/gutenberg-mobile/pull/6402]
+* [**] Address rare cases where a null value is passed to a heading block, causing a crash [https://github.com/wordpress-mobile/gutenberg-mobile/pull/6435]
 
 1.109.0
 ---
diff --git a/gutenberg b/gutenberg
index 5f925409c2..a2b7ac2f1b 160000
--- a/gutenberg
+++ b/gutenberg
@@ -1 +1 @@
-Subproject commit 5f925409c239a347d5942a256c12f7ec91989c35
+Subproject commit a2b7ac2f1bebbac832d8547294c15dc8e4eba4b6