diff --git a/Cargo.lock b/Cargo.lock
index c5a8fdee..a2752a29 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1529,13 +1529,13 @@ checksum = "521739c6d2bac4aa25192232afe6841231376b2b26d4d9fae5ecf8ca5772e441"
 
 [[package]]
 name = "num-derive"
-version = "0.4.2"
+version = "0.5.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ed3955f1a9c7c0c15e092f9c887db08b1fc683305fdf6eb6684f22555355e202"
+checksum = "e4e98dc3b890f6c23a0f9d3d491a2823d0dea0fa656302a13dd225fa924112a8"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.119",
+ "syn 3.0.3",
 ]
 
 [[package]]
diff --git a/Cargo.toml b/Cargo.toml
index bfe9a5f3..e49fc369 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -67,7 +67,7 @@ bit-vec = "0.10.1"
 speedy = "0.8.0"
 log = "0.4.11"
 num-traits = "0.2"
-num-derive = "0.4.2"
+num-derive = "0.5.1"
 serde = { version = "1.0", features = ["derive"] }
 serde_repr="0.1"
 byteorder = { version = "1.3", features = ["i128"] }