diff --git a/lib/plugins/aws/provider.js b/lib/plugins/aws/provider.js
index 1ef2bd533..f8a920269 100644
--- a/lib/plugins/aws/provider.js
+++ b/lib/plugins/aws/provider.js
@@ -14,6 +14,7 @@ const path = require('path');
 const spawnExt = require('child-process-ext/spawn');
 const ServerlessError = require('../../serverless-error');
 const awsRequest = require('../../aws/request');
+const { cfValue } = require('../../utils/aws-schema-get-cf-value');
 const deepSortObjectByKey = require('../../utils/deepSortObjectByKey');
 const { progress, legacy, log } = require('@serverless/utils/log');
 
@@ -1270,7 +1271,7 @@ class AwsProvider {
               additionalProperties: false,
             },
             provisionedConcurrency: { type: 'integer', minimum: 1 },
-            reservedConcurrency: { type: 'integer', minimum: 0 },
+            reservedConcurrency: cfValue({ type: 'integer', minimum: 0 }),
             role: { $ref: '#/definitions/awsLambdaRole' },
             runtime: { $ref: '#/definitions/awsLambdaRuntime' },
             tags: { $ref: '#/definitions/awsResourceTags' },