diff --git a/lexicons/repo/repo.json b/lexicons/repo/repo.json
--- a/lexicons/repo/repo.json
+++ b/lexicons/repo/repo.json
@@ -34,7 +34,6 @@ "description": "CI runner to send jobs to and receive results from"
           },
           "description": {
             "type": "string",
-            "format": "datetime",
             "minGraphemes": 1,
             "maxGraphemes": 140
           },