diff --git a/flake.lock b/flake.lock
index f93fe7de5..1e929ad21 100644
--- a/flake.lock
+++ b/flake.lock
@@ -109,11 +109,11 @@
         "nixpkgs": "nixpkgs_2"
       },
       "locked": {
-        "lastModified": 1670113356,
-        "narHash": "sha256-43aMRMU0OuBin6M2LM+nxVG+whazyHuHnUvu92xoth0=",
+        "lastModified": 1670908544,
+        "narHash": "sha256-SBlApO9OAnH2q4RqCHl8a2vZWhz/WAh+iojVM/k3bQ8=",
         "owner": "mitchellh",
         "repo": "zig-overlay",
-        "rev": "17352071583eda4be43fa2a312f6e061326374f7",
+        "rev": "066597fa3ed09d9c507f46a5850a392f451ef6cd",
         "type": "github"
       },
       "original": {
diff --git a/pkg/harfbuzz/blob.zig b/pkg/harfbuzz/blob.zig
index b7dde9c83..071a4da88 100644
--- a/pkg/harfbuzz/blob.zig
+++ b/pkg/harfbuzz/blob.zig
@@ -77,7 +77,7 @@ pub const Blob = struct {
         comptime T: type,
         key: ?*anyopaque,
         ptr: ?*T,
-        comptime destroycb: ?std.meta.FnPtr(fn (?*T) callconv(.C) void),
+        comptime destroycb: ?*const fn (?*T) callconv(.C) void,
         replace: bool,
     ) bool {
         const Callback = struct {
diff --git a/pkg/libuv/Embed.zig b/pkg/libuv/Embed.zig
index 371517a19..4245f16cf 100644
--- a/pkg/libuv/Embed.zig
+++ b/pkg/libuv/Embed.zig
@@ -23,7 +23,7 @@ mutex: Mutex,
 cond: Cond,
 ready: bool = false,
 terminate: BoolAtomic,
-callback: std.meta.FnPtr(fn () void),
+callback: *const fn () void,
 thread: ?Thread,
 
 /// Initialize a new embedder. The callback is called when libuv should
@@ -31,7 +31,7 @@ thread: ?Thread,
 pub fn init(
     alloc: Allocator,
     loop: Loop,
-    callback: std.meta.FnPtr(fn () void),
+    callback: *const fn () void,
 ) !Embed {
     return Embed{
         .loop = loop,
diff --git a/pkg/objc/msg_send.zig b/pkg/objc/msg_send.zig
index d7334a27f..21551285f 100644
--- a/pkg/objc/msg_send.zig
+++ b/pkg/objc/msg_send.zig
@@ -79,7 +79,7 @@ pub fn MsgSend(comptime T: type) type {
             const Fn = MsgSendFn(RealReturn, @TypeOf(target.value), @TypeOf(args));
             // Due to this stage2 Zig issue[1], this must be var for now.
             // [1]: https://github.com/ziglang/zig/issues/13598
-            var msg_send_ptr = @ptrCast(std.meta.FnPtr(Fn), msg_send_fn);
+            var msg_send_ptr = @ptrCast(*const Fn, msg_send_fn);
             const result = @call(.{}, msg_send_ptr, .{ target.value, sel.value } ++ args);
 
             if (!is_object) return result;
diff --git a/src/font/face/freetype_convert.zig b/src/font/face/freetype_convert.zig
index 616446027..a53518f2f 100644
--- a/src/font/face/freetype_convert.zig
+++ b/src/font/face/freetype_convert.zig
@@ -17,7 +17,7 @@ pub const Map = [freetype.c.FT_PIXEL_MODE_MAX]AtlasArray;
 /// to be exactly `width * rows * depth` long for freeing it. The caller must
 /// free the bitmap buffer. The depth is the depth of the atlas format in the
 /// map.
-pub const Func = std.meta.FnPtr(fn (Allocator, Bitmap) Allocator.Error!Bitmap);
+pub const Func = *const fn (Allocator, Bitmap) Allocator.Error!Bitmap;
 
 /// Alias for the freetype FT_Bitmap type to make it easier to type.
 pub const Bitmap = freetype.c.struct_FT_Bitmap_;
diff --git a/src/renderer/opengl/glad.zig b/src/renderer/opengl/glad.zig
index 4ab3e6642..3ee52431e 100644
--- a/src/renderer/opengl/glad.zig
+++ b/src/renderer/opengl/glad.zig
@@ -13,13 +13,13 @@ pub threadlocal var context: Context = undefined;
 /// The getProcAddress param is an anytype so that we can accept multiple
 /// forms of the function depending on what we're interfacing with.
 pub fn load(getProcAddress: anytype) !c_int {
-    const GlProc = std.meta.FnPtr(fn () callconv(.C) void);
-    const GlfwFn = std.meta.FnPtr(fn ([*:0]const u8) callconv(.C) ?GlProc);
+    const GlProc = *const fn () callconv(.C) void;
+    const GlfwFn = *const fn ([*:0]const u8) callconv(.C) ?GlProc;
 
     const res = switch (@TypeOf(getProcAddress)) {
         // glfw
         GlfwFn => c.gladLoadGLContext(&context, @ptrCast(
-            std.meta.FnPtr(fn ([*c]const u8) callconv(.C) ?GlProc),
+            *const fn ([*c]const u8) callconv(.C) ?GlProc,
             getProcAddress,
         )),