diff --git a/Cargo.toml b/Cargo.toml
index 7034c5a..1c3ec86 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -14,7 +14,7 @@ categories = ['asynchronous', 'concurrency', 'data-structures', 'algorithms']
 [dependencies]
 crossbeam = "0.2"
 futures = "0.1.9"
-smallvec = "0.3.1"
+smallvec = "0.6.3"
 parking_lot = "0.5"
 time = "0.1.35"
 atomic_utilities = "0.4.0"