diff --git a/Cargo.toml b/Cargo.toml
index 4bd27c7..62b8d55 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -12,7 +12,7 @@ repository = "https://github.com/dkim19375/todoist-rest-api-rs"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
-chrono = { version = "0.4.37", features = ["serde"] }#, optional = true }
+chrono = { version = "0.4.38", features = ["serde"] }#, optional = true }
 chrono-tz = { version = "0.9.0", features = ["serde"] }#, optional = true }
 reqwest = { version = "0.12.3", features = ["json"] }
 serde = { version = "1.0.197", features = ["derive"] }