diff --git a/.jenkins.sh b/.jenkins.sh
index b24a061fa1ac77a29232f06a9034dd755a41bbc4..448356cdee9aedf84853be89c4f39bbb1353304d 100644
--- a/.jenkins.sh
+++ b/.jenkins.sh
@@ -1,17 +1,18 @@
 #!/bin/bash
 
-specfiles=$(ls | egrep -i "^Mp1.(json|yaml)")
+specfiles=$(ls | egrep "^[^.]*.(json|yaml)")
 
 fres=0
 for i in $specfiles ; do
-	echo "-- Validating OpenAPI file $i..."
-	swagger-tools validate $i
-	res=$?
-	fres=$(($fres||$res))
-	echo -e "-- Validator returned $res.\n"
+    echo "-- Validating and linting OpenAPI file $i..."
+    swagger-cli validate "$i"
+    res=$?
+    speccy lint "$i"
+    res2=$?
+    fres=$(($fres||$res||$res2))
+    echo "--- Validator returned $res, linter returned $res2."
 done
 
-echo "-- Final validator returns $fres."
-
-exit $fres
+echo "-- Final validation returns $fres."
 
+exit $fres
\ No newline at end of file
diff --git a/Mp1.json b/Mp1.json
index 0e6efe965f5bf5bfbe23e8d348fe8538d8628844..1850af105ae9102b4127783bb8bce3312f611d40 100644
--- a/Mp1.json
+++ b/Mp1.json
@@ -890,7 +890,7 @@
         "description": "Time to live value",
         "type": "integer",
         "format": "uint32",
-        "example": 300
+        "example": "?"
       },
       "DnsRule": {
         "description": "This type represents the general information of a DNS rule.",
@@ -1144,7 +1144,13 @@
         ],
         "properties": {
           "grantTypes": {
-            "$ref": "#/components/schemas/SecurityInfo.OAuth2Info.GrantTypes"
+            "description": "List of supported OAuth 2.0 grant types.",
+            "type": "array",
+            "minItems": 1,
+            "maxItems": 4,
+            "items": {
+              "$ref": "#/components/schemas/SecurityInfo.OAuth2Info.GrantTypes"
+            }
           },
           "tokenEndpoint": {
             "$ref": "#/components/schemas/SecurityInfo.OAuth2Info.TokenEndpoint"
diff --git a/Mp1.yaml b/Mp1.yaml
index 1f27a147f1d132c3799270525dce6a632550bc4d..eeeb600e904653574e6a3757ff4b93323149a7bf 100644
--- a/Mp1.yaml
+++ b/Mp1.yaml
@@ -835,7 +835,13 @@ components:
         - tokenEndpoint
       properties:
         grantTypes:
-          $ref: '#/components/schemas/SecurityInfo.OAuth2Info.GrantTypes'
+          description: >-
+            List of supported OAuth 2.0 grant types.
+          type: array
+          minItems: 1
+          maxItems: 4
+          items:
+            $ref: '#/components/schemas/SecurityInfo.OAuth2Info.GrantTypes'
         tokenEndpoint:
           $ref: '#/components/schemas/SecurityInfo.OAuth2Info.TokenEndpoint'
       type: object