diff --git a/cdevents-sdk/Cargo.toml b/cdevents-sdk/Cargo.toml
index 4b1c8ea..c34f4dd 100644
--- a/cdevents-sdk/Cargo.toml
+++ b/cdevents-sdk/Cargo.toml
@@ -14,7 +14,7 @@ cloudevents-sdk = { version = "0.9", optional = true, default-features = false }
 enum_dispatch = "0.3"
 fluent-uri = { version = "0.4", features = ["serde"] }
 proptest = { version = "1", optional = true }
-proptest-derive = { version = "0.7", optional = true }
+proptest-derive = { version = "0.8", optional = true }
 serde = { version = "1", features = ["derive"] }
 serde_json = "1"
 thiserror = "2"