diff --git a/Cargo.toml b/Cargo.toml
index b391785..f52523e 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -14,7 +14,7 @@ edition = "2018"
 # Dependencies for core library
 ark-ec = { version = "^0.2.0", default-features = false }
 ark-ff = { version = "^0.2.0", default-features = false }
-ark-serialize = { version = "^0.2.0", default-features = false, features = [ "derive" ] }
+ark-serialize = { version = "^0.4.0", default-features = false, features = [ "derive" ] }
 ark-sponge = { git = "https://github.com/arkworks-rs/sponge/", branch = "accumulation-experimental", default-features = false }
 ark-std = { version = "^0.2.0", default-features = false }
 derivative = { version = "2.1.1", default-features = false, features = [ "use_core" ] }