diff --git a/trust-graph/Cargo.toml b/trust-graph/Cargo.toml
index 22241a7..df0e593 100644
--- a/trust-graph/Cargo.toml
+++ b/trust-graph/Cargo.toml
@@ -15,7 +15,7 @@ bs58 = "0.4.0"
 failure = "0.1.6"
 log = "0.4.11"
 ref-cast = "1.0.2"
-derivative = "2.1.1"
+derivative = "2.2.0"
 thiserror = "1.0.23"
 sha2 = "0.10.6"
 nonempty = "0.8.1"