diff --git a/MANIFEST.json b/MANIFEST.json
index e52bcc6..c08cba9 100644
--- a/MANIFEST.json
+++ b/MANIFEST.json
@@ -560,7 +560,7 @@
     },
     {
       "description": "Thales Group Taxonomy - was designed with the aim of enabling desired sharing and preventing unwanted sharing between Thales Group security communities.",
-      "name": "thales-group-taxonomy",
+      "name": "thales_group",
       "version": 2
     },
     {
@@ -620,5 +620,5 @@
     }
   ],
   "url": "https://raw.githubusercontent.com/MISP/misp-taxonomies/main/",
-  "version": "20210617"
+  "version": "20210621"
 }
diff --git a/thales-group-taxonomy/machinetag.json b/thales_group/machinetag.json
similarity index 99%
rename from thales-group-taxonomy/machinetag.json
rename to thales_group/machinetag.json
index baa307e..3cf5706 100644
--- a/thales-group-taxonomy/machinetag.json
+++ b/thales_group/machinetag.json
@@ -115,5 +115,5 @@
   "version": 2,
   "description": "Thales Group Taxonomy - was designed with the aim of enabling desired sharing and preventing unwanted sharing between Thales Group security communities.",
   "expanded": "Thales Group Taxonomy",
-  "namespace": "thales-group-taxonomy"
+  "namespace": "thales_group"
 }