diff --git a/Cargo.toml b/Cargo.toml
index 20dfd54..5ce4a9a 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -65,7 +65,7 @@ clap = "2.34.0"
 unicode-width = "0.1.5"
 openssl = { version = '0.10.11', optional = true }
 im-rc = "15.0.0"
-itertools = "0.10.0"
+itertools = "0.14.0"
 
 # 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`