diff --git a/clippy_lints/Cargo.toml b/clippy_lints/Cargo.toml
index ad3b077ec..99eebcdd3 100644
--- a/clippy_lints/Cargo.toml
+++ b/clippy_lints/Cargo.toml
@@ -19,7 +19,7 @@ edition = "2018"
 [dependencies]
 cargo_metadata = "0.9.0"
 if_chain = "1.0.0"
-itertools = "0.8"
+itertools = "0.9"
 lazy_static = "1.0.2"
 matches = "0.1.7"
 pulldown-cmark = { version = "0.7", default-features = false }