diff --git a/components/epaxos/Cargo.toml b/components/epaxos/Cargo.toml
index 435b77e..48fdb08 100644
--- a/components/epaxos/Cargo.toml
+++ b/components/epaxos/Cargo.toml
@@ -25,7 +25,7 @@ prost = { version = "0.6.1" }
 tonic = "0.2"
 tokio = { version = "0.2.18", features = ["full"] }
 derive_more = "0.99.3"
-num = "0.2.1"
+num = "0.3.1"
 serde = { version = "1.0", features = ["derive"] }
 serde_yaml = { version = "0.8" }
 lazy_static = { version = "1.4.0" }