diff --git a/Cargo.toml b/Cargo.toml
index 74a8c0b..cfca37b 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -17,7 +17,7 @@ thiserror = "1.0.50"
 
 [dev-dependencies]
 num-traits = "0.2"
-num-derive = "0.3"
+num-derive = "0.4"
 libfuzzer-sys = "0.4"
 
 [package.metadata.commits]