diff --git a/Cargo.toml b/Cargo.toml
index 7aba7600..ea2cb992 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -24,7 +24,7 @@ arbitrary = { version = "1", features = ["derive"], optional = true }
 
 [dev-dependencies]
 criterion = "0.4"
-pretty_assertions = "1.3"
+pretty_assertions = "1.4"
 regex = "1"
 # #[serde(other)] allowed not only inside field_identifier since 1.0.79
 # serde does not follow semver in numbering and their dependencies, so we specifying patch here