diff --git a/Cargo.toml b/Cargo.toml
index 4b9ed94..63eb1c0 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -17,7 +17,7 @@ edition = "2018"
 [dependencies]
 ark-ff = { version = "^0.3.0", default-features = false }
 ark-ec = { version = "^0.3.0", default-features = false }
-ark-serialize = { version = "^0.3.0", default-features = false, features = [ "derive" ] }
+ark-serialize = { version = "^0.4.0", default-features = false, features = [ "derive" ] }
 ark-poly = { version = "^0.3.0", default-features = false }
 ark-std = { version = "^0.3.0", default-features = false }
 ark-relations = { version = "^0.3.0", default-features = false }