diff --git a/packages/toy-blog-endpoint-model/Cargo.toml b/packages/toy-blog-endpoint-model/Cargo.toml
index b4da28b..4bd1f25 100644
--- a/packages/toy-blog-endpoint-model/Cargo.toml
+++ b/packages/toy-blog-endpoint-model/Cargo.toml
@@ -6,6 +6,6 @@ edition = "2021"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
-chrono = { version = "0.4.27", features = ["serde"] }
+chrono = { version = "0.4.31", features = ["serde"] }
 serde = { version = "1.0.188", features = ["derive"] }
 strum = { version = "0.25.0", features = ["derive"] }
diff --git a/packages/toy-blog/Cargo.toml b/packages/toy-blog/Cargo.toml
index adce973..24048d0 100644
--- a/packages/toy-blog/Cargo.toml
+++ b/packages/toy-blog/Cargo.toml
@@ -11,7 +11,7 @@ actix-cors = "0.6.4"
 actix-web = "4.4.0"
 actix-web-httpauth = "0.8.0"
 anyhow = "1.0.75"
-chrono = { version = "0.4.27", default-features = false, features = ["std", "clock", "libc", "time", "serde"] }
+chrono = { version = "0.4.31", default-features = false, features = ["std", "clock", "libc", "time", "serde"] }
 clap = { version = "4.4.1", features = ["derive"] }
 fern = { version = "0.6.2", features = ["colored"] }
 fs2 = { version = "0.4.3" }