diff --git a/harfbuzz-sys/Cargo.toml b/harfbuzz-sys/Cargo.toml
index fa886f67..780b77d0 100644
--- a/harfbuzz-sys/Cargo.toml
+++ b/harfbuzz-sys/Cargo.toml
@@ -27,9 +27,8 @@ pkg-config = { version = "0.3" }
 cc = { version = "1" }
 
 [target.'cfg(target_vendor = "apple")'.dependencies]
-core-graphics = { version = "0.23", optional = true }
-core-text = { version = "20", optional = true }
-foreign-types = { version = "0.5", optional = true }
+objc2-core-graphics = { version = "0.3.2", default-features = false, features = ["CGFont"], optional = true }
+objc2-core-text = { version = "0.3.2", default-features = false, features = ["CTFont"], optional = true }
 
 [target.'cfg(target_family = "windows")'.dependencies.windows]
 version = "0.59"
@@ -43,6 +42,6 @@ optional = true
 [features]
 default = ["coretext", "directwrite", "freetype"]
 bundled = []
-coretext = ["dep:core-graphics", "dep:core-text", "dep:foreign-types"]
+coretext = ["dep:objc2-core-graphics", "dep:objc2-core-text"]
 directwrite = ["dep:windows"]
 freetype = ["dep:freetype-sys"]
diff --git a/harfbuzz-sys/src/coretext.rs b/harfbuzz-sys/src/coretext.rs
index cc847bd3..feed229a 100644
--- a/harfbuzz-sys/src/coretext.rs
+++ b/harfbuzz-sys/src/coretext.rs
@@ -9,19 +9,16 @@
 
 use crate::{hb_face_t, hb_font_t};
 
-use core_graphics::font::CGFont;
-use core_text::font::CTFontRef;
-use foreign_types::ForeignType;
-
-type CGFontRef = *mut <CGFont as ForeignType>::CType;
+use objc2_core_graphics::CGFont;
+use objc2_core_text::CTFont;
 
 extern "C" {
     /// This requires that the `coretext` feature is enabled.
-    pub fn hb_coretext_face_create(cg_font: CGFontRef) -> *mut hb_face_t;
+    pub fn hb_coretext_face_create(cg_font: CGFont) -> *mut hb_face_t;
     /// This requires that the `coretext` feature is enabled.
-    pub fn hb_coretext_font_create(ct_font: CTFontRef) -> *mut hb_font_t;
+    pub fn hb_coretext_font_create(ct_font: CTFont) -> *mut hb_font_t;
     /// This requires that the `coretext` feature is enabled.
-    pub fn hb_coretext_face_get_cg_font(face: *mut hb_face_t) -> CGFontRef;
+    pub fn hb_coretext_face_get_cg_font(face: *mut hb_face_t) -> CGFont;
     /// This requires that the `coretext` feature is enabled.
-    pub fn hb_coretext_font_get_ct_font(font: *mut hb_font_t) -> CTFontRef;
+    pub fn hb_coretext_font_get_ct_font(font: *mut hb_font_t) -> CTFont;
 }