diff --git a/malware_classification/machinetag.json b/malware_classification/machinetag.json
index 64919d1..5853130 100644
--- a/malware_classification/machinetag.json
+++ b/malware_classification/machinetag.json
@@ -1,7 +1,7 @@
 {
   "namespace": "malware_classification",
   "description": "Classification based on different categories. Based on https://www.sans.org/reading-room/whitepapers/incident/malware-101-viruses-32848",
-  "version": 2,
+  "version": 3,
   "predicates": [
     {
       "value": "malware-category",
@@ -52,6 +52,10 @@
           "value": "Adware",
           "expanded": "Adware"
         },
+        {
+          "value": "Stalkerware",
+          "expanded": "Stalkerware"
+        },
         {
           "value": "Spyware",
           "expanded": "Spyware"