diff --git a/specification/monitor/resource-manager/readme.md b/specification/monitor/resource-manager/readme.md
index 12c36f881d56..4c154053ac93 100644
--- a/specification/monitor/resource-manager/readme.md
+++ b/specification/monitor/resource-manager/readme.md
@@ -43,7 +43,7 @@ input-file:
 - microsoft.insights/stable/2016-03-01/logProfiles_API.json
 - microsoft.insights/preview/2017-05-01-preview/diagnosticsSettings_API.json
 - microsoft.insights/preview/2017-05-01-preview/diagnosticsSettingsCategories_API.json
-- microsoft.insights/stable/2017-04-01/actionGroups_API.json
+- microsoft.insights/stable/2018-03-01/actionGroups_API.json
 - microsoft.insights/stable/2017-04-01/activityLogAlerts_API.json
 - microsoft.insights/stable/2015-04-01/activityLogs_API.json
 - microsoft.insights/stable/2015-04-01/eventCategories_API.json