diff --git a/src/tools/rustbook/Cargo.lock b/src/tools/rustbook/Cargo.lock
index 27ccb205b50..5ec12fe49f1 100644
--- a/src/tools/rustbook/Cargo.lock
+++ b/src/tools/rustbook/Cargo.lock
@@ -704,7 +704,6 @@ dependencies = [
  "semver",
  "serde_json",
  "tempfile",
- "walkdir",
 ]
 
 [[package]]
diff --git a/src/tools/tidy/src/deps.rs b/src/tools/tidy/src/deps.rs
index a4a4c8cc628..772f6cda61d 100644
--- a/src/tools/tidy/src/deps.rs
+++ b/src/tools/tidy/src/deps.rs
@@ -115,14 +115,11 @@
 
 const EXCEPTIONS_CARGO: ExceptionList = &[
     // tidy-alphabetical-start
-    ("arrayref", "BSD-2-Clause"),
     ("bitmaps", "MPL-2.0+"),
-    ("blake3", "CC0-1.0 OR Apache-2.0 OR Apache-2.0 WITH LLVM-exception"),
     ("bytesize", "Apache-2.0"),
     ("ciborium", "Apache-2.0"),
     ("ciborium-io", "Apache-2.0"),
     ("ciborium-ll", "Apache-2.0"),
-    ("constant_time_eq", "CC0-1.0 OR MIT-0 OR Apache-2.0"),
     ("dunce", "CC0-1.0 OR MIT-0 OR Apache-2.0"),
     ("encoding_rs", "(Apache-2.0 OR MIT) AND BSD-3-Clause"),
     ("fiat-crypto", "MIT OR Apache-2.0 OR BSD-1-Clause"),