diff --git a/Cargo.toml b/Cargo.toml
index a33cee6..874bb43 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -17,7 +17,7 @@ name = "non_empty_string"
 
 [dependencies]
 serde = { version = "1", optional = true }
-delegate = { version = "0.8" }
+delegate = { version = "0.13" }
 
 [dev-dependencies]
 assert_matches = "1.5.0"