diff --git a/Cargo.toml b/Cargo.toml
index 8a8b356..233f786 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -28,7 +28,7 @@ rand = { version = "0.8.3", optional = true }
 
 
 [dev-dependencies]
-clap = "3.0.0"
+clap = "4.0.0"
 tempfile = "3.2.0"
 hex = "0.4.3"
 rand = "0.8.3"