diff --git a/CHANGELOG.md b/CHANGELOG.md
index 05a32e8..10ec61b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,7 @@
 
 ## 0.11.0 - Unreleased
 
+- Disable clock feature of chrono to mitigate RUSTSEC-2020-0159 [`#57`](https://github.com/rust-syndication/atom/pull/57)
 - Escape Content's value unless it contains xhtml [`#52`](https://github.com/rust-syndication/atom/pull/52)
 - Preserve entities and open tags (e.g `&amp;`, `<br/>`) in xhtml content [`#53`](https://github.com/rust-syndication/atom/pull/53)
 - Add support of xml:base and xml:land in a Feed [`#55`](https://github.com/rust-syndication/atom/pull/55)
diff --git a/Cargo.toml b/Cargo.toml
index 4536ab5..85232dd 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -17,8 +17,8 @@ quick-xml = { version = "0.22", features = ["encoding"] }
 derive_builder = { version = "0.10.2", optional = true }
 never = { version = "0.1", optional = true }
 serde = { version = "1.0", optional = true, features = ["derive"] }
-chrono = "0.4"
-diligent-date-parser = "0.1"
+chrono = { version = "0.4", default-features = false, features = ["alloc"] }
+diligent-date-parser = "0.1.3"
 
 [features]
 default = ["builders"]