diff --git a/projects/plugins/jetpack/changelog/fix-site-title-block-block-style-missing b/projects/plugins/jetpack/changelog/fix-site-title-block-block-style-missing
new file mode 100644
index 0000000000000..319191bdbe558
--- /dev/null
+++ b/projects/plugins/jetpack/changelog/fix-site-title-block-block-style-missing
@@ -0,0 +1,4 @@
+Significance: patch
+Type: bugfix
+
+Set the `Automattic\Jetpack\Fonts\Introspectors\Global_Styles::enqueue_global_styles_fonts` callback priority in the `init` hook to 22 to prevent it from causing style issues with sites that have Gutenberg > 13.5 activated.
diff --git a/projects/plugins/jetpack/modules/google-fonts.php b/projects/plugins/jetpack/modules/google-fonts.php
index 7d9f91fec524b..501cc9bdbfb54 100644
--- a/projects/plugins/jetpack/modules/google-fonts.php
+++ b/projects/plugins/jetpack/modules/google-fonts.php
@@ -104,4 +104,7 @@ function jetpack_add_google_fonts_provider() {
 
 add_filter( 'wp_resource_hints', '\Automattic\Jetpack\Fonts\Utils::font_source_resource_hint', 10, 2 );
 add_filter( 'pre_render_block', '\Automattic\Jetpack\Fonts\Introspectors\Blocks::enqueue_block_fonts', 10, 2 );
-add_action( 'init', '\Automattic\Jetpack\Fonts\Introspectors\Global_Styles::enqueue_global_styles_fonts' );
+// The priority for the next hook is is set to 22 because it needs to run after Gutenberg's
+// re-registration (at priority 22) of the core blocks it de-registers (at the default priority 10),
+// otherwise Gutenberg caches an incorrect state.
+add_action( 'init', '\Automattic\Jetpack\Fonts\Introspectors\Global_Styles::enqueue_global_styles_fonts', 22 );