diff --git a/Cargo.toml b/Cargo.toml
index 806bfe520..a70092d0d 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -106,7 +106,7 @@ windows = { version = ">=0.54, <=0.57", optional = true }
 libc = "^0.2.153"
 
 [target.'cfg(any(target_os = "macos", target_os = "ios"))'.dependencies]
-core-foundation-sys = "0.8"
+core-foundation-sys = "0.8.7"
 
 [target.'cfg(all(target_os = "linux", not(target_os = "android")))'.dev-dependencies]
 tempfile = "3.9"
diff --git a/src/unix/apple/macos/cpu.rs b/src/unix/apple/macos/cpu.rs
index e96c2972f..974f4d0b7 100644
--- a/src/unix/apple/macos/cpu.rs
+++ b/src/unix/apple/macos/cpu.rs
@@ -10,6 +10,7 @@ pub(crate) unsafe fn get_cpu_frequency() -> u64 {
     use crate::sys::ffi;
     use crate::sys::macos::utils::IOReleaser;
     use crate::sys::utils::CFReleaser;
+    use core_foundation_sys::string::CFStringCreateWithCStringNoCopy;
 
     let matching = ffi::IOServiceMatching(b"AppleARMIODevice\0".as_ptr() as *const _);
     if matching.is_null() {
@@ -54,7 +55,7 @@ pub(crate) unsafe fn get_cpu_frequency() -> u64 {
         }
     };
 
-    let node_name = match CFReleaser::new(ffi::CFStringCreateWithCStringNoCopy(
+    let node_name = match CFReleaser::new(CFStringCreateWithCStringNoCopy(
         std::ptr::null(),
         b"voltage-states5-sram\0".as_ptr() as *const _,
         core_foundation_sys::string::kCFStringEncodingUTF8,
diff --git a/src/unix/apple/macos/ffi.rs b/src/unix/apple/macos/ffi.rs
index 3e0dfc6e0..d62339be4 100644
--- a/src/unix/apple/macos/ffi.rs
+++ b/src/unix/apple/macos/ffi.rs
@@ -1,5 +1,6 @@
 // Take a look at the license at the top of the repository in the LICENSE file.
 
+#[cfg(any(feature = "system", feature = "disk"))]
 use core_foundation_sys::base::CFAllocatorRef;
 #[cfg(any(
     feature = "system",
@@ -15,6 +16,7 @@ use core_foundation_sys::dictionary::CFDictionaryRef;
     all(feature = "component", any(target_arch = "x86", target_arch = "x86_64")),
 ))]
 use core_foundation_sys::dictionary::CFMutableDictionaryRef;
+#[cfg(any(feature = "system", feature = "disk"))]
 use core_foundation_sys::string::CFStringRef;
 
 use libc::c_char;
@@ -144,17 +146,6 @@ extern "C" {
 ))]
 pub const KIO_RETURN_SUCCESS: i32 = 0;
 
-extern "C" {
-    // FIXME: to be removed once higher version than core_foundation_sys 0.8.4 is released.
-    #[allow(dead_code)]
-    pub fn CFStringCreateWithCStringNoCopy(
-        alloc: CFAllocatorRef,
-        cStr: *const c_char,
-        encoding: core_foundation_sys::string::CFStringEncoding,
-        contentsDeallocator: CFAllocatorRef,
-    ) -> CFStringRef;
-}
-
 #[cfg(all(
     not(feature = "apple-sandbox"),
     all(
@@ -262,7 +253,6 @@ pub use io_service::*;
 mod io_service {
     use std::ptr::null;
 
-    use super::CFStringCreateWithCStringNoCopy;
     use core_foundation_sys::array::CFArrayRef;
     use core_foundation_sys::base::{CFAllocatorRef, CFRelease};
     use core_foundation_sys::dictionary::{
@@ -270,7 +260,7 @@ mod io_service {
         CFDictionaryRef,
     };
     use core_foundation_sys::number::{kCFNumberSInt32Type, CFNumberCreate};
-    use core_foundation_sys::string::CFStringRef;
+    use core_foundation_sys::string::{CFStringCreateWithCStringNoCopy, CFStringRef};
 
     #[repr(C)]
     pub struct __IOHIDServiceClient(libc::c_void);