diff --git a/rules/detection-rules.json b/rules/detection-rules.json
index ad01d827..575fcacf 100644
--- a/rules/detection-rules.json
+++ b/rules/detection-rules.json
@@ -60,7 +60,8 @@
       "^https:\\/\\/(?:[^/]*\\.)?zoom\\.us(/.*)?$",
       "^https:\\/\\/github\\.com(/.*)?$",
       "^https:\\/\\/[^/]*\\.github\\.com(/.*)?$",
-      "^https:\\/\\/[^/]*\\.github\\.io(/.*)?$"
+      "^https:\\/\\/[^/]*\\.github\\.io(/.*)?$",
+      "^https:\\/\\/(?:[^/]*\\.)?britishgas\\.co\\.uk(/.*)?$"
     ],
     "context_indicators": {
       "description": "Additional context that indicates legitimate discussion vs phishing",