diff --git a/bp7/Cargo.toml b/bp7/Cargo.toml
index d9cf8ad..c54cb2e 100644
--- a/bp7/Cargo.toml
+++ b/bp7/Cargo.toml
@@ -25,7 +25,7 @@ edition = "2021"
 [dependencies]
 serde = { version = "1.0", features = ["derive"] }
 serde_cbor = "0.11.2"
-serde_repr = "0.1"
+serde_repr = "0.1.19"
 bitflags = "2.5.0"
 chrono = "0.4.38"
 binascii = "0.1.4"