--- a/src/bootstrap/bootstrap.py
+++ b/src/bootstrap/bootstrap.py
@@ -889,8 +889,6 @@
             args.append("--verbose")
         if self.use_locked_deps:
             args.append("--locked")
-        if self.use_vendored_sources:
-            args.append("--frozen")
         run(args, env=env, verbose=self.verbose)
 
     def build_triple(self):
--- a/src/bootstrap/builder.rs
+++ b/src/bootstrap/builder.rs
@@ -1459,9 +1459,6 @@
         if self.config.locked_deps {
             cargo.arg("--locked");
         }
-        if self.config.vendor || self.is_sudo {
-            cargo.arg("--frozen");
-        }
 
         // Try to use a sysroot-relative bindir, in case it was configured absolutely.
         cargo.env("RUSTC_INSTALL_BINDIR", self.config.bindir_relative());