diff --git a/storage/Cargo.toml b/storage/Cargo.toml
index 5dbfaad7..f11a1853 100644
--- a/storage/Cargo.toml
+++ b/storage/Cargo.toml
@@ -8,7 +8,7 @@ license = "MIT"
 name = "google-cloud-storage"
 readme = "README.md"
 repository = "https://github.com/yoshidan/google-cloud-rust/tree/main/storage"
-version = "0.22.0"
+version = "0.22.1"
 
 [dependencies]
 anyhow = "1.0"
diff --git a/storage/src/http/buckets/mod.rs b/storage/src/http/buckets/mod.rs
index 835471ef..2355477a 100644
--- a/storage/src/http/buckets/mod.rs
+++ b/storage/src/http/buckets/mod.rs
@@ -475,5 +475,6 @@ pub struct Condition {
     pub title: String,
     /// Optional. Description of the expression. This is a longer text which
     /// describes the expression, e.g. when hovered over it in a UI.
-    pub description: String,
+    #[serde(default)]
+    pub description: Option<String>,
 }