diff --git a/Cargo.toml b/Cargo.toml
index e0987ee..d1d235d 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -19,7 +19,7 @@ arrayvec = "0.4"
 fxhash = "0.2"
 rayon = "1"
 shred = "0.7.1"
-smallvec = "0.6"
+smallvec = "1.5"
 
 [dev-dependencies]
 shred-derive = "0.5.1"