diff --git a/examples/Cargo.toml b/examples/Cargo.toml
index b35c587b6..ceb2a36a1 100644
--- a/examples/Cargo.toml
+++ b/examples/Cargo.toml
@@ -25,7 +25,7 @@ once_cell = "1.5.2"
 rand = "0.8.3"
 
 [target.'cfg(windows)'.dev-dependencies.windows-sys]
-version = "0.42.0"
+version = "0.45"
 
 [[example]]
 name = "chat"
diff --git a/tokio/Cargo.toml b/tokio/Cargo.toml
index fcf1bea4b..0e96ccb7c 100644
--- a/tokio/Cargo.toml
+++ b/tokio/Cargo.toml
@@ -125,11 +125,11 @@ libc = { version = "0.2.42" }
 nix = { version = "0.26", default-features = false, features = ["fs", "socket"] }
 
 [target.'cfg(windows)'.dependencies.windows-sys]
-version = "0.42.0"
+version = "0.45"
 optional = true
 
 [target.'cfg(docsrs)'.dependencies.windows-sys]
-version = "0.42.0"
+version = "0.45"
 features = [
     "Win32_Foundation",
     "Win32_Security_Authorization",