diff --git a/bootstrap/src/main.rs b/bootstrap/src/main.rs
index ddcc9d38..0c9aadf3 100644
--- a/bootstrap/src/main.rs
+++ b/bootstrap/src/main.rs
@@ -15,6 +15,15 @@ fn main() {
         env!("CARGO_MANIFEST_DIR"),
         "/../meta/src/grammar.pest"
     ));
+
+    // workaround for Windows
+    // TODO: use `normpath` or a different workaround on Windows?
+    let pest_ref = pest.to_string_lossy();
+    let normalized_path = pest_ref
+        .strip_prefix(r#"\\?\"#)
+        .unwrap_or_else(|| &pest_ref);
+    let pest = Path::new(&normalized_path);
+
     // Path on which we should write generated grammar file.
     // In case `not-bootstrap-in-src` is:
     // * OFF -> in `grammar.rs` next to `grammar.pest`
diff --git a/meta/Cargo.toml b/meta/Cargo.toml
index b2989b3c..d10bddeb 100644
--- a/meta/Cargo.toml
+++ b/meta/Cargo.toml
@@ -27,7 +27,7 @@ once_cell = "1.8.0"
 
 [build-dependencies]
 sha2 = { version = "0.10", default-features = false }
-cargo = { version = "0.72.2", optional = true }
+cargo = { version = "0.81.0", optional = true }
 
 [features]
 default = []
diff --git a/meta/build.rs b/meta/build.rs
index 0c8f69ed..b61c53e9 100644
--- a/meta/build.rs
+++ b/meta/build.rs
@@ -1,10 +1,9 @@
 #[cfg(feature = "not-bootstrap-in-src")]
 use cargo::{
     core::{resolver::CliFeatures, Workspace},
-    ops,
-    ops::{CompileOptions, Packages},
+    ops::{self, CompileOptions, Packages},
     util::command_prelude::CompileMode,
-    Config,
+    GlobalContext,
 };
 use sha2::{Digest, Sha256};
 use std::env;
@@ -82,7 +81,7 @@ fn main() {
 
             #[cfg(feature = "not-bootstrap-in-src")]
             {
-                let config = Config::default().expect("cargo config");
+                let config = GlobalContext::default().expect("cargo config");
                 let workspace_manifest = manifest_dir
                     .join("../Cargo.toml")
                     .canonicalize()