diff --git a/clusters/threat-actor.json b/clusters/threat-actor.json
index a888d297..84edfa51 100644
--- a/clusters/threat-actor.json
+++ b/clusters/threat-actor.json
@@ -753,7 +753,8 @@
           "TG-4127",
           "Group-4127",
           "STRONTIUM",
-          "TAG_0700"
+          "TAG_0700",
+          "IRON TWILIGHT"
         ],
         "country": "RU",
         "refs": [