diff --git a/ethcontract-mock/Cargo.toml b/ethcontract-mock/Cargo.toml
index 2eeb4e5f..206f6037 100644
--- a/ethcontract-mock/Cargo.toml
+++ b/ethcontract-mock/Cargo.toml
@@ -16,7 +16,7 @@ ethcontract = { version = "0.24.0", path = "../ethcontract", default-features =
 hex = "0.4"
 mockall = "0.11"
 rlp = "0.5"
-predicates = "2.0"
+predicates = "3.0"
 
 [dev-dependencies]
 tokio = { version = "1.6", features = ["macros", "rt"] }