diff --git a/Cargo.toml b/Cargo.toml
index e34fb82..7ae1e81 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -15,7 +15,7 @@ default = ["hashbrown"]
 nightly = ["hashbrown", "hashbrown/nightly"]
 
 [dependencies]
-hashbrown = { version = "0.8.0", optional = true }
+hashbrown = { version = "0.9.0", optional = true }
 
 [dev-dependencies]
 scoped_threadpool = "0.1.*"