diff --git a/Cargo.toml b/Cargo.toml
index 60945b1..89122ef 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -14,8 +14,8 @@ license = "MIT"
 [dependencies]
 thiserror = "^1.0"
 byteorder = "1"
-bytes = "0.5"
-num-rational = { version = "0.3", features = ["serde"] }
+bytes = "1.1.0"
+num-rational = { version = "0.4.0", features = ["serde"] }
 serde = { version = "1.0", features = ["derive"] }
 serde_json = "1.0"