diff --git a/generate/sam-2016-10-31.json b/generate/sam-2016-10-31.json
index aa0d482bff..97def62583 100644
--- a/generate/sam-2016-10-31.json
+++ b/generate/sam-2016-10-31.json
@@ -752,7 +752,7 @@
                 "Authorizers": {
                     "Documentation": "https://github.com/awslabs/serverless-application-model/blob/master/versions/2016-10-31.md#api-auth-object",
                     "Required": false,
-                    "PrimitiveType": "String",
+                    "PrimitiveType": "Json",
                     "UpdateType": "Immutable"
                 }
             }