diff --git a/src/tools/tidy/src/deps.rs b/src/tools/tidy/src/deps.rs
index daa9cb8d22ed5..c05349c8e8da7 100644
--- a/src/tools/tidy/src/deps.rs
+++ b/src/tools/tidy/src/deps.rs
@@ -180,7 +180,6 @@ const PERMITTED_RUSTC_DEPENDENCIES: &[&str] = &[
     "instant",
     "intl-memoizer",
     "intl_pluralrules",
-    "io-lifetimes",
     "is-terminal",
     "itertools",
     "itoa",