diff --git a/package.json b/package.json
index 5bcc5ed..729a159 100644
--- a/package.json
+++ b/package.json
@@ -21,7 +21,7 @@
     "boutique": "~0.1.3",
     "deep-equal": "1.0.x",
     "deepcopy": "0.4.x",
-    "protagonist-experimental": "~0.18.7",
+    "protagonist": "0.19.x",
     "yargs": "~1.3.3"
   },
   "devDependencies": {
diff --git a/src/drafter.coffee b/src/drafter.coffee
index 3074dbf..08297f1 100644
--- a/src/drafter.coffee
+++ b/src/drafter.coffee
@@ -1,4 +1,4 @@
-protagonist = require 'protagonist-experimental'
+protagonist = require 'protagonist'
 boutique = require 'boutique'
 options = require './options'
 fs = require 'fs'
diff --git a/test/fixtures/blueprint.parseresult+sourcemap.json b/test/fixtures/blueprint.parseresult+sourcemap.json
index c2aff13..f14c289 100644
--- a/test/fixtures/blueprint.parseresult+sourcemap.json
+++ b/test/fixtures/blueprint.parseresult+sourcemap.json
@@ -1,6 +1,6 @@
 {
   "ast": {
-    "_version": "2.1",
+    "_version": "3.0",
     "metadata": [],
     "name": "",
     "description": "",
@@ -23,6 +23,10 @@
                 "description": "",
                 "method": "GET",
                 "parameters": [],
+                "attributes": {
+                  "relation": "",
+                  "uriTemplate": ""
+                },
                 "content": [],
                 "examples": [
                   {
@@ -73,6 +77,10 @@
                 "description": "",
                 "method": "GET",
                 "parameters": [],
+                "attributes": {
+                  "relation": "",
+                  "uriTemplate": ""
+                },
                 "content": [],
                 "examples": [
                   {
@@ -139,6 +147,10 @@
                   ]
                 ],
                 "parameters": [],
+                "attributes": {
+                  "relation": [],
+                  "uriTemplate": []
+                },
                 "examples": [
                   {
                     "name": [],
@@ -208,6 +220,10 @@
                   ]
                 ],
                 "parameters": [],
+                "attributes": {
+                  "relation": [],
+                  "uriTemplate": []
+                },
                 "examples": [
                   {
                     "name": [],
diff --git a/test/fixtures/blueprint.parseresult.json b/test/fixtures/blueprint.parseresult.json
index 70ec0a9..5050cbe 100644
--- a/test/fixtures/blueprint.parseresult.json
+++ b/test/fixtures/blueprint.parseresult.json
@@ -1,6 +1,6 @@
 {
   "ast": {
-    "_version": "2.1",
+    "_version": "3.0",
     "metadata": [],
     "name": "",
     "description": "",
@@ -23,6 +23,10 @@
                 "description": "",
                 "method": "GET",
                 "parameters": [],
+                "attributes": {
+                  "relation": "",
+                  "uriTemplate": ""
+                },
                 "content": [],
                 "examples": [
                   {
@@ -73,6 +77,10 @@
                 "description": "",
                 "method": "GET",
                 "parameters": [],
+                "attributes": {
+                  "relation": "",
+                  "uriTemplate": ""
+                },
                 "content": [],
                 "examples": [
                   {
diff --git a/test/fixtures/dataStructures.ast.json b/test/fixtures/dataStructures.ast.json
index f0da241..7005149 100644
--- a/test/fixtures/dataStructures.ast.json
+++ b/test/fixtures/dataStructures.ast.json
@@ -1,5 +1,5 @@
 {
-  "_version": "2.1",
+  "_version": "3.0",
   "metadata": [
     {
       "name": "FORMAT",
@@ -43,6 +43,10 @@
               "description": "Retrieves the coupon with the given ID.\n\n",
               "method": "GET",
               "parameters": [],
+              "attributes": {
+                "relation": "",
+                "uriTemplate": ""
+              },
               "content": [],
               "examples": [
                 {
@@ -522,6 +526,10 @@
                   "values": []
                 }
               ],
+              "attributes": {
+                "relation": "",
+                "uriTemplate": ""
+              },
               "content": [],
               "examples": [
                 {
@@ -584,6 +592,10 @@
               "description": "Creates a new Coupon.\n\n",
               "method": "POST",
               "parameters": [],
+              "attributes": {
+                "relation": "",
+                "uriTemplate": ""
+              },
               "content": [
                 {
                   "element": "dataStructure",
@@ -2590,6 +2602,10 @@
               "description": "Retrieves the coupon with the given ID.\n\n",
               "method": "GET",
               "parameters": [],
+              "attributes": {
+                "relation": "",
+                "uriTemplate": ""
+              },
               "content": [],
               "examples": [
                 {
@@ -3069,6 +3085,10 @@
                   "values": []
                 }
               ],
+              "attributes": {
+                "relation": "",
+                "uriTemplate": ""
+              },
               "content": [],
               "examples": [
                 {
@@ -3131,6 +3151,10 @@
               "description": "Creates a new Coupon.\n\n",
               "method": "POST",
               "parameters": [],
+              "attributes": {
+                "relation": "",
+                "uriTemplate": ""
+              },
               "content": [
                 {
                   "element": "dataStructure",