diff --git a/src/technologies/i.json b/src/technologies/i.json
index 825b25624..3a814a333 100644
--- a/src/technologies/i.json
+++ b/src/technologies/i.json
@@ -35,7 +35,7 @@
     "cats": [
       22
     ],
-    "cpe": "cpe:/a:microsoft:internet_information_server",
+    "cpe": "cpe:2.3:a:microsoft:internet_information_server",
     "description": "Internet Information Services (IIS) is an extensible web server software created by Microsoft for use with the Windows NT family.",
     "headers": {
       "Server": "^(?:Microsoft-)?IIS(?:/([\\d.]+))?\\;version:\\1"