diff --git a/forgejo-hooks/Cargo.toml b/forgejo-hooks/Cargo.toml
index 2b8444e..6242844 100644
--- a/forgejo-hooks/Cargo.toml
+++ b/forgejo-hooks/Cargo.toml
@@ -4,4 +4,5 @@ version = "0.1.0"
 edition = "2021"
 
 [dependencies]
+chrono = { version = "0.4", default-features = false, features = ["serde"] }
 serde = { version = "1.0", features = ["derive"] }
diff --git a/forgejo-hooks/src/lib.rs b/forgejo-hooks/src/lib.rs
index 758ba12..4c35cdc 100644
--- a/forgejo-hooks/src/lib.rs
+++ b/forgejo-hooks/src/lib.rs
@@ -1,3 +1,4 @@
+use chrono::{DateTime, Utc};
 use serde::Deserialize;
 
 #[derive(Deserialize, Debug)]
@@ -24,7 +25,7 @@ pub struct Commit {
 	pub url: String,
 	pub author: CommitAuthor,
 	pub committer: CommitAuthor,
-	pub timestamp: String,
+	pub timestamp: DateTime<Utc>,
 }
 
 #[derive(Deserialize, Debug)]
@@ -59,8 +60,8 @@ pub struct Repository {
 	pub watchers_count: u32,
 	pub open_issues_count: u32,
 	pub default_branch: String,
-	pub created_at: String,
-	pub updated_at: String,
+	pub created_at: DateTime<Utc>,
+	pub updated_at: DateTime<Utc>,
 }
 
 #[derive(Deserialize, Debug)]
@@ -91,9 +92,9 @@ pub struct RepositoryFull {
 	pub open_issues_count: u32,
 	pub open_pr_counter: u32,
 	pub default_branch: String,
-	pub created_at: String,
-	pub updated_at: String,
-	pub archived_at: String,
+	pub created_at: DateTime<Utc>,
+	pub updated_at: DateTime<Utc>,
+	pub archived_at: DateTime<Utc>,
 	pub permissions: Perms,
 	pub has_issues: bool,
 	pub internal_tracker: InternalTracker,
@@ -114,7 +115,7 @@ pub struct RepositoryFull {
 	pub avatar_url: String,
 	pub internal: bool,
 	pub mirror_internal: String,
-	pub mirror_updated: String,
+	pub mirror_updated: DateTime<Utc>,
 	pub repo_transfer: Option<String>,
 }
 
@@ -128,8 +129,8 @@ pub struct RepositoryOwner {
 	pub avatar_url: String,
 	pub language: String,
 	pub is_admin: bool,
-	pub last_login: String,
-	pub created: String,
+	pub last_login: DateTime<Utc>,
+	pub created: DateTime<Utc>,
 	pub restricted: bool,
 	pub active: bool,
 	pub prohibit_login: bool,