diff --git a/x-pack/plugin/core/template-resources/src/main/resources/fleet-agents.json b/x-pack/plugin/core/template-resources/src/main/resources/fleet-agents.json
index 8b1c13f3152e8..fb7f96cd223d4 100644
--- a/x-pack/plugin/core/template-resources/src/main/resources/fleet-agents.json
+++ b/x-pack/plugin/core/template-resources/src/main/resources/fleet-agents.json
@@ -310,6 +310,9 @@
         "upgrade_status": {
           "type": "keyword"
         },
+        "upgrade_attempts": {
+          "type": "date"
+        },
         "user_provided_metadata": {
           "type": "object",
           "enabled": false