diff --git a/cdevents-sdk/Cargo.toml b/cdevents-sdk/Cargo.toml
index 310c4c3..20ee6b3 100644
--- a/cdevents-sdk/Cargo.toml
+++ b/cdevents-sdk/Cargo.toml
@@ -14,7 +14,7 @@ description = "A Rust SDK for CDEvents"
 cloudevents-sdk = { version = "0.8", optional = true, default-features = false }
 fluent-uri = "0.3"
 proptest = { version = "1.4", optional = true }
-proptest-derive = { version = "0.5", optional = true }
+proptest-derive = { version = "0.6", optional = true }
 serde = { version = "1.0", features = ["derive"] }
 serde_json = "1.0"
 thiserror = "2.0"