diff --git a/tests/data/valid-statements/LEI_issued.json b/tests/data/valid-statements/LEI_issued.json
index e326f08d..a6dfb3f9 100644
--- a/tests/data/valid-statements/LEI_issued.json
+++ b/tests/data/valid-statements/LEI_issued.json
@@ -5,7 +5,7 @@
           "officialRegister",
           "verified"
         ],
-        "assertedBy": "GLEIF",
+        "assertedBy": ["GLEIF"],
         "url": "https://goldencopy.gleif.org/storage/golden-copy-files/2024/06/06/940025/20240606-0000-gleif-goldencopy-repex-golden-copy.csv.zip"
       },
       "statementDate": "2024-03-28",