diff --git a/schemas/2021-08-01/Microsoft.Insights.json b/schemas/2021-08-01/Microsoft.Insights.json
index d2f89ee4c7..d8890903e6 100644
--- a/schemas/2021-08-01/Microsoft.Insights.json
+++ b/schemas/2021-08-01/Microsoft.Insights.json
@@ -401,7 +401,7 @@
         "severity": {
           "oneOf": [
             {
-              "type": "number"
+              "type": "integer"
             },
             {
               "$ref": "https://schema.management.azure.com/schemas/common/definitions.json#/definitions/expression"