diff --git a/auth/src/lib.rs b/auth/src/lib.rs
index 59511f5f0..36bcd2545 100644
--- a/auth/src/lib.rs
+++ b/auth/src/lib.rs
@@ -352,6 +352,13 @@ mod tests {
     #[tokio::main]
     #[test]
     async fn test_refresher() {
+        if vec!["GITHUB_WORKFLOW", "GITHUB_ACTION", "GITHUB_WORKSPACE"]
+            .iter()
+            .all(|name| std::env::var(name).is_ok())
+        {
+            // TODO(#21) - disabled on GitHub Actions builds
+            return ();
+        }
         let cred = Credential::find_default(crate::CredentialConfig {
             scopes: vec!["https://www.googleapis.com/auth/cloud-platform".into()],
         })