diff --git a/src/lib.rs b/src/lib.rs
index 3ad3944..2b6640d 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -886,7 +886,7 @@ pub async fn report_blockages(
             .unwrap();
         let resp = client.request(req).await.unwrap();
         let buf = hyper::body::to_bytes(resp).await.unwrap();
-        let resp_str: String = serde_json::from_slice(&buf).unwrap();
+        let resp_str = String::from_utf8(buf.to_vec()).unwrap();
         assert_eq!("OK", resp_str);
     }
 }