diff --git a/deps/harfbuzz/harfbuzz b/deps/harfbuzz/harfbuzz
index c36844d6d..9d5730b95 160000
--- a/deps/harfbuzz/harfbuzz
+++ b/deps/harfbuzz/harfbuzz
@@ -1 +1 @@
-Subproject commit c36844d6d923bfc765f841fde10d6f505ff297fd
+Subproject commit 9d5730b958974bc9db95e46e6bad52e9e9cd6e1c
diff --git a/deps/harfbuzz/src/lib.rs b/deps/harfbuzz/src/lib.rs
index 53fa22bc4..4966efc2b 100644
--- a/deps/harfbuzz/src/lib.rs
+++ b/deps/harfbuzz/src/lib.rs
@@ -814,6 +814,14 @@ extern "C" {
         last: *mut hb_codepoint_t,
     ) -> hb_bool_t;
 }
+extern "C" {
+    pub fn hb_set_next_many(
+        set: *const hb_set_t,
+        codepoint: hb_codepoint_t,
+        out: *mut hb_codepoint_t,
+        size: ::std::os::raw::c_uint,
+    ) -> ::std::os::raw::c_uint;
+}
 extern "C" {
     pub fn hb_face_count(blob: *mut hb_blob_t) -> ::std::os::raw::c_uint;
 }
diff --git a/docs/changelog.md b/docs/changelog.md
index cf9b3c2e6..b59c65c81 100644
--- a/docs/changelog.md
+++ b/docs/changelog.md
@@ -16,7 +16,7 @@ As features stabilize some brief notes about them will accumulate here.
 * Default key assignments are `mapped:` again. A new [key_map_preference](config/lua/config/key_map_preference.md) option allows the defaults to use `"Mapped"` or `"Physical"`.
 * Disabled ligatures for `"Monaco"` and `"Menlo"` fonts, as those ligatures match even for words such as `find`. [#1786](https://github.com/wez/wezterm/issues/1786) [#1736](https://github.com/wez/wezterm/issues/1736)
 #### Updated and Improved
-* Bundled harfbuzz to 4.1.0
+* Bundled harfbuzz to 4.2.0
 * On macOS, non-native fullscreen mode now attempts to avoid the notch on systems that have one. [#1737](https://github.com/wez/wezterm/issues/1737)
 * Sixel parsing performance has been improved
 * You may now [specify a scaling factor per fallback font](config/lua/wezterm/font_with_fallback.md#manual-fallback-scaling), which is useful when your preferred CJK font renders smaller than your Roman primary font, for example.