diff --git a/cyber-threat-framework/machinetag.json b/cyber-threat-framework/machinetag.json
index 157ca5d..79c9be8 100644
--- a/cyber-threat-framework/machinetag.json
+++ b/cyber-threat-framework/machinetag.json
@@ -2,6 +2,7 @@
   "namespace": "cyber-threat-framework",
   "expanded": "Cyber Threat Framework",
   "description": "Cyber Threat Framework was developed by the US Government to enable consistent characterization and categorization of cyber threat events, and to identify trends or changes in the activities of cyber adversaries. https://www.dni.gov/index.php/cyber-threat-framework",
+  "version": 1,
   "predicates": [
     {
       "value": "Preparation",