diff --git a/Cargo.lock b/Cargo.lock
index 0f2cfba2925ed..9356d46dc8928 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -5857,7 +5857,7 @@ checksum = "bc1f16b778125675feee0d15d6dd9f6af0e3ac52b3233d63a10aa39230c1cd75"
 dependencies = [
  "proc-macro2",
  "rayon",
- "syn 2.0.27",
+ "syn 2.0.29",
  "windows-metadata",
 ]
 
diff --git a/library/std/src/sys/windows/c/windows_sys.lst b/library/std/src/sys/windows/c/windows_sys.lst
index aabb68c5c1067..0aca37e2d454e 100644
--- a/library/std/src/sys/windows/c/windows_sys.lst
+++ b/library/std/src/sys/windows/c/windows_sys.lst
@@ -2330,7 +2330,6 @@ Windows.Win32.Storage.FileSystem.FileStandardInfo
 Windows.Win32.Storage.FileSystem.FileStorageInfo
 Windows.Win32.Storage.FileSystem.FileStreamInfo
 Windows.Win32.Storage.FileSystem.FindClose
-Windows.Win32.Storage.FileSystem.FindFileHandle
 Windows.Win32.Storage.FileSystem.FindFirstFileW
 Windows.Win32.Storage.FileSystem.FindNextFileW
 Windows.Win32.Storage.FileSystem.FlushFileBuffers
@@ -2542,9 +2541,6 @@ Windows.Win32.System.Threading.PROFILE_USER
 Windows.Win32.System.Threading.REALTIME_PRIORITY_CLASS
 Windows.Win32.System.Threading.ReleaseSRWLockExclusive
 Windows.Win32.System.Threading.ReleaseSRWLockShared
-Windows.Win32.System.Threading.RTL_CONDITION_VARIABLE
-Windows.Win32.System.Threading.RTL_RUN_ONCE
-Windows.Win32.System.Threading.RTL_SRWLOCK
 Windows.Win32.System.Threading.SetThreadStackGuarantee
 Windows.Win32.System.Threading.Sleep
 Windows.Win32.System.Threading.SleepConditionVariableSRW
@@ -2584,8 +2580,6 @@ Windows.Win32.System.Threading.WaitForMultipleObjects
 Windows.Win32.System.Threading.WaitForSingleObject
 Windows.Win32.System.Threading.WakeAllConditionVariable
 Windows.Win32.System.Threading.WakeConditionVariable
-Windows.Win32.System.WindowsProgramming.IO_STATUS_BLOCK
-Windows.Win32.System.WindowsProgramming.OBJECT_ATTRIBUTES
 Windows.Win32.System.WindowsProgramming.PROGRESS_CONTINUE
 Windows.Win32.UI.Shell.GetUserProfileDirectoryW
 // tidy-alphabetical-end
diff --git a/library/std/src/sys/windows/c/windows_sys.rs b/library/std/src/sys/windows/c/windows_sys.rs
index 96c7d17c3ce60..851d15915c7d1 100644
--- a/library/std/src/sys/windows/c/windows_sys.rs
+++ b/library/std/src/sys/windows/c/windows_sys.rs
@@ -4,7 +4,7 @@
 // regenerate the bindings.
 //
 // ignore-tidy-filelength
-// Bindings generated by `windows-bindgen` 0.49.0
+// Bindings generated by `windows-bindgen` 0.51.1
 
 #![allow(non_snake_case, non_upper_case_globals, non_camel_case_types, dead_code, clippy::all)]
 #[link(name = "advapi32")]