diff --git a/Cargo.lock b/Cargo.lock
index c6d934702..62eccdc50 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -284,7 +284,6 @@ dependencies = [
  "pathdiff",
  "pretty_env_logger",
  "rand",
- "rustc-workspace-hack",
  "rustfix",
  "same-file",
  "semver",
@@ -2665,12 +2664,6 @@ version = "1.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "08d43f7aa6b08d49f382cde6a7982047c3426db949b1424bc4b7ec9ae12c6ce2"
 
-[[package]]
-name = "rustc-workspace-hack"
-version = "1.0.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fc71d2faa173b74b232dedc235e3ee1696581bb132fc116fa3626d6151a1a8fb"
-
 [[package]]
 name = "rustfix"
 version = "0.6.1"
diff --git a/Cargo.toml b/Cargo.toml
index 393091afc..6e1460e8e 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -100,11 +100,6 @@ unicode-xid = "0.2.0"
 url = "2.2.2"
 walkdir = "2.2"
 
-# A noop dependency that changes in the Rust repository, it's a bit of a hack.
-# See the `src/tools/rustc-workspace-hack/README.md` file in `rust-lang/rust`
-# for more information.
-rustc-workspace-hack = "1.0.0"
-
 [target.'cfg(windows)'.dependencies]
 fwdansi = "1.1.0"