diff --git a/kong/mcp/ai-mcp-proxy.yaml b/kong/mcp/ai-mcp-proxy.yaml
index 692a9e4..19b9973 100644
--- a/kong/mcp/ai-mcp-proxy.yaml
+++ b/kong/mcp/ai-mcp-proxy.yaml
@@ -58,13 +58,15 @@ config:
                   type: integer
                   example: 123
                 next:
-                  type: string
-                  nullable: true
+                  type:
+                  - string
+                  - 'null'
                   format: uri
                   example: http://api.example.org/accounts/?page=4
                 previous:
-                  type: string
-                  nullable: true
+                  type:
+                  - string
+                  - 'null'
                   format: uri
                   example: http://api.example.org/accounts/?page=2
                 results:
@@ -93,33 +95,38 @@ config:
                         type: string
                         maxLength: 50
                       addressline2:
-                        type: string
-                        nullable: true
+                        type:
+                        - string
+                        - 'null'
                         maxLength: 50
                       city:
                         type: string
                         maxLength: 50
                       state:
-                        type: string
-                        nullable: true
+                        type:
+                        - string
+                        - 'null'
                         maxLength: 50
                       postalcode:
-                        type: string
-                        nullable: true
+                        type:
+                        - string
+                        - 'null'
                         maxLength: 15
                       country:
                         type: string
                         maxLength: 50
                       creditlimit:
-                        type: string
+                        type:
+                        - string
+                        - 'null'
                         format: decimal
                         pattern: ^-?\d{0,8}(?:\.\d{0,2})?$
-                        nullable: true
                       salesrepemployeenumber:
-                        type: integer
+                        type:
+                        - integer
+                        - 'null'
                         maximum: 2147483647
                         minimum: -2147483648
-                        nullable: true
                     required:
                     - addressline1
                     - city
@@ -183,33 +190,38 @@ config:
                   type: string
                   maxLength: 50
                 addressline2:
-                  type: string
-                  nullable: true
+                  type:
+                  - string
+                  - 'null'
                   maxLength: 50
                 city:
                   type: string
                   maxLength: 50
                 state:
-                  type: string
-                  nullable: true
+                  type:
+                  - string
+                  - 'null'
                   maxLength: 50
                 postalcode:
-                  type: string
-                  nullable: true
+                  type:
+                  - string
+                  - 'null'
                   maxLength: 15
                 country:
                   type: string
                   maxLength: 50
                 creditlimit:
-                  type: string
+                  type:
+                  - string
+                  - 'null'
                   format: decimal
                   pattern: ^-?\d{0,8}(?:\.\d{0,2})?$
-                  nullable: true
                 salesrepemployeenumber:
-                  type: integer
+                  type:
+                  - integer
+                  - 'null'
                   maximum: 2147483647
                   minimum: -2147483648
-                  nullable: true
               required:
               - addressline1
               - city
@@ -304,33 +316,38 @@ config:
                   type: string
                   maxLength: 50
                 addressline2:
-                  type: string
-                  nullable: true
+                  type:
+                  - string
+                  - 'null'
                   maxLength: 50
                 city:
                   type: string
                   maxLength: 50
                 state:
-                  type: string
-                  nullable: true
+                  type:
+                  - string
+                  - 'null'
                   maxLength: 50
                 postalcode:
-                  type: string
-                  nullable: true
+                  type:
+                  - string
+                  - 'null'
                   maxLength: 15
                 country:
                   type: string
                   maxLength: 50
                 creditlimit:
-                  type: string
+                  type:
+                  - string
+                  - 'null'
                   format: decimal
                   pattern: ^-?\d{0,8}(?:\.\d{0,2})?$
-                  nullable: true
                 salesrepemployeenumber:
-                  type: integer
+                  type:
+                  - integer
+                  - 'null'
                   maximum: 2147483647
                   minimum: -2147483648
-                  nullable: true
               required:
               - addressline1
               - city