diff --git a/Cargo.lock b/Cargo.lock
index 495a17a9c1fc..2c6b45cbe720 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1199,7 +1199,7 @@ dependencies = [
  "web-sys",
  "web-time",
  "wgpu",
- "windows-sys 0.59.0",
+ "windows-sys 0.52.0",
  "winit",
 ]
 
@@ -4678,15 +4678,6 @@ dependencies = [
  "windows-targets 0.52.6",
 ]
 
-[[package]]
-name = "windows-sys"
-version = "0.59.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1e38bc4d79ed67fd075bcc251a1c39b32a1776bbe92e5bef1f0bf1f8c531853b"
-dependencies = [
- "windows-targets 0.52.6",
-]
-
 [[package]]
 name = "windows-targets"
 version = "0.42.2"
diff --git a/crates/eframe/Cargo.toml b/crates/eframe/Cargo.toml
index bf5442e7adae..3343a153bf3f 100644
--- a/crates/eframe/Cargo.toml
+++ b/crates/eframe/Cargo.toml
@@ -183,7 +183,7 @@ objc2-app-kit = { version = "0.2.0", features = [
 
 # windows:
 [target.'cfg(any(target_os = "windows"))'.dependencies]
-windows-sys = { version = "0.59", features = [
+windows-sys = { version = "0.52", features = [
   "Win32_UI_WindowsAndMessaging",
   "Win32_UI_Input_KeyboardAndMouse",
 ] }
diff --git a/crates/eframe/src/native/app_icon.rs b/crates/eframe/src/native/app_icon.rs
index b751e66cba19..6d3cb2ff1ca1 100644
--- a/crates/eframe/src/native/app_icon.rs
+++ b/crates/eframe/src/native/app_icon.rs
@@ -94,7 +94,7 @@ fn set_app_icon_windows(icon_data: &IconData) -> AppIconStatus {
 
     // SAFETY: Windows API function without side-effects.
     let window_handle = unsafe { KeyboardAndMouse::GetActiveWindow() };
-    if window_handle.is_null() {
+    if window_handle == 0 {
         // The Window isn't available yet. Try again later!
         return AppIconStatus::NotSetTryAgain;
     }
@@ -123,7 +123,7 @@ fn set_app_icon_windows(icon_data: &IconData) -> AppIconStatus {
             )
             .is_err()
         {
-            return std::ptr::null_mut();
+            return 0;
         }
 
         // SAFETY: Creating an HICON which should be readonly on our data.
@@ -159,7 +159,7 @@ fn set_app_icon_windows(icon_data: &IconData) -> AppIconStatus {
         let icon_size_big =
             unsafe { WindowsAndMessaging::GetSystemMetrics(WindowsAndMessaging::SM_CXICON) };
         let icon_big = create_hicon_with_scale(&unscaled_image, icon_size_big);
-        if icon_big.is_null() {
+        if icon_big == 0 {
             log::warn!("Failed to create HICON (for big icon) from embedded png data.");
             return AppIconStatus::NotSetIgnored; // We could try independently with the small icon but what's the point, it would look bad!
         } else {
@@ -169,7 +169,7 @@ fn set_app_icon_windows(icon_data: &IconData) -> AppIconStatus {
                     window_handle,
                     WindowsAndMessaging::WM_SETICON,
                     WindowsAndMessaging::ICON_BIG as usize,
-                    icon_big as isize,
+                    icon_big,
                 );
             }
         }
@@ -179,7 +179,7 @@ fn set_app_icon_windows(icon_data: &IconData) -> AppIconStatus {
         let icon_size_small =
             unsafe { WindowsAndMessaging::GetSystemMetrics(WindowsAndMessaging::SM_CXSMICON) };
         let icon_small = create_hicon_with_scale(&unscaled_image, icon_size_small);
-        if icon_small.is_null() {
+        if icon_small == 0 {
             log::warn!("Failed to create HICON (for small icon) from embedded png data.");
             return AppIconStatus::NotSetIgnored;
         } else {
@@ -189,7 +189,7 @@ fn set_app_icon_windows(icon_data: &IconData) -> AppIconStatus {
                     window_handle,
                     WindowsAndMessaging::WM_SETICON,
                     WindowsAndMessaging::ICON_SMALL as usize,
-                    icon_small as isize,
+                    icon_small,
                 );
             }
         }