diff --git a/crates/http-api/Cargo.toml b/crates/http-api/Cargo.toml
index 79214ac..86c87d0 100644
--- a/crates/http-api/Cargo.toml
+++ b/crates/http-api/Cargo.toml
@@ -4,6 +4,10 @@ version.workspace = true
 edition.workspace = true
 license.workspace = true
 authors.workspace = true
+# v0.5.0: inherit the workspace repository so CARGO_PKG_REPOSITORY is
+# populated at build time — the About-tab update check derives the
+# Gitea releases API URL from it.
+repository.workspace = true
 description = "HTTP server: ISO uploads, iPXE script generation, ISO streaming"
 
 [lints]
diff --git a/crates/http-api/src/app.rs b/crates/http-api/src/app.rs
index 6c07cbb..81a4a53 100644
--- a/crates/http-api/src/app.rs
+++ b/crates/http-api/src/app.rs
@@ -2345,12 +2345,12 @@ mod tests {
 
     #[test]
     fn gitea_api_url_derives_from_repo() {
-        // CARGO_PKG_REPOSITORY is set from the workspace manifest.
-        let url = gitea_releases_api_url();
-        if let Some(u) = url {
-            assert!(u.contains("/api/v1/repos/"), "got: {u}");
-            assert!(u.ends_with("/releases/latest"), "got: {u}");
-        }
+        // The crate inherits the workspace `repository`, so
+        // CARGO_PKG_REPOSITORY is populated and the update check has a
+        // real URL to hit (regressed once when the inherit was missing).
+        let u = gitea_releases_api_url().expect("repository must be configured at build time");
+        assert!(u.contains("/api/v1/repos/"), "got: {u}");
+        assert!(u.ends_with("/releases/latest"), "got: {u}");
     }
 
     #[test]