diff --git a/Cargo.toml b/Cargo.toml
index 2253c86..ebacc96 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -5,7 +5,7 @@ authors = ["Tony Garnock-Jones <tonyg@leastfixedpoint.com>"]
 edition = "2018"
 
 [dependencies]
-preserves = "0.3.0"
+preserves = "0.3.1"
 
 serde = { version = "1.0", features = ["derive", "rc"] }
 serde_bytes = "0.11"