diff --git a/composer.json b/composer.json
index 74365e1677..5593a1c961 100755
--- a/composer.json
+++ b/composer.json
@@ -40,6 +40,7 @@
     "oat-sa/extension-tao-outcomelti": "3.2.1",
     "oat-sa/extension-tao-delivery": "14.7.0",
     "oat-sa/extension-tao-lti": "11.3.0",
+    "oat-sa/extension-tao-delivery-rdf": "10.2.2",
     "oat-sa/extension-tao-ltideliveryprovider": "10.1.4",
     "oat-sa/extension-tao-revision": "7.0.0",
     "oat-sa/extension-tao-mediamanager": "9.0.1",
diff --git a/composer.lock b/composer.lock
index 20da421c9c..af8504f165 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "4600f97bf640e71cf5ac951a0eade52f",
+    "content-hash": "04178b4e8a20a4c11a6c7498d8f61069",
     "packages": [
         {
             "name": "clearfw/clearfw",
@@ -443,12 +443,12 @@
             "version": "0.9.1",
             "source": {
                 "type": "git",
-                "url": "https://github.com/njh/easyrdf.git",
+                "url": "https://github.com/easyrdf/easyrdf.git",
                 "reference": "acd09dfe0555fbcfa254291e433c45fdd4652566"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/njh/easyrdf/zipball/acd09dfe0555fbcfa254291e433c45fdd4652566",
+                "url": "https://api.github.com/repos/easyrdf/easyrdf/zipball/acd09dfe0555fbcfa254291e433c45fdd4652566",
                 "reference": "acd09dfe0555fbcfa254291e433c45fdd4652566",
                 "shasum": ""
             },
@@ -650,16 +650,16 @@
         },
         {
             "name": "guzzlehttp/guzzle",
-            "version": "6.5.4",
+            "version": "6.5.5",
             "source": {
                 "type": "git",
                 "url": "https://github.com/guzzle/guzzle.git",
-                "reference": "a4a1b6930528a8f7ee03518e6442ec7a44155d9d"
+                "reference": "9d4290de1cfd701f38099ef7e183b64b4b7b0c5e"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/guzzle/guzzle/zipball/a4a1b6930528a8f7ee03518e6442ec7a44155d9d",
-                "reference": "a4a1b6930528a8f7ee03518e6442ec7a44155d9d",
+                "url": "https://api.github.com/repos/guzzle/guzzle/zipball/9d4290de1cfd701f38099ef7e183b64b4b7b0c5e",
+                "reference": "9d4290de1cfd701f38099ef7e183b64b4b7b0c5e",
                 "shasum": ""
             },
             "require": {
@@ -667,7 +667,7 @@
                 "guzzlehttp/promises": "^1.0",
                 "guzzlehttp/psr7": "^1.6.1",
                 "php": ">=5.5",
-                "symfony/polyfill-intl-idn": "1.17.0"
+                "symfony/polyfill-intl-idn": "^1.17.0"
             },
             "require-dev": {
                 "ext-curl": "*",
@@ -713,7 +713,7 @@
                 "rest",
                 "web service"
             ],
-            "time": "2020-05-25T19:35:05+00:00"
+            "time": "2020-06-16T21:01:06+00:00"
         },
         {
             "name": "guzzlehttp/promises",
@@ -1139,9 +1139,9 @@
             "authors": [
                 {
                     "name": "Maurice Fonk",
+                    "role": "developer",
                     "email": "maurice@naneau.net",
-                    "homepage": "http://mauricefonk.com",
-                    "role": "developer"
+                    "homepage": "http://mauricefonk.com"
                 }
             ],
             "description": "A decent, standards-compliant, Semantic Versioning (SemVer) parser and library",
@@ -1239,15 +1239,15 @@
             "authors": [
                 {
                     "name": "Erin Millard",
+                    "role": "original author",
                     "email": "ezzatron@gmail.com",
-                    "homepage": "http://ezzatron.com/",
-                    "role": "original author"
+                    "homepage": "http://ezzatron.com/"
                 },
                 {
                     "name": "OAT SA",
+                    "role": "forkers",
                     "email": "contact@taotesting.com",
-                    "homepage": "https://taotestingg.com",
-                    "role": "forkers"
+                    "homepage": "https://taotestingg.com"
                 }
             ],
             "description": "NPM integration for Composer packages.",
@@ -1584,16 +1584,16 @@
         },
         {
             "name": "oat-sa/extension-tao-delivery-rdf",
-            "version": "v11.5.1",
+            "version": "v10.2.2",
             "source": {
                 "type": "git",
                 "url": "https://github.com/oat-sa/extension-tao-delivery-rdf.git",
-                "reference": "b58d77010b6c3c023565dd20c1b93c77e0de9af8"
+                "reference": "4282cf2ff8a9e60f1f7c7bbce6a6551c1c24561d"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/oat-sa/extension-tao-delivery-rdf/zipball/b58d77010b6c3c023565dd20c1b93c77e0de9af8",
-                "reference": "b58d77010b6c3c023565dd20c1b93c77e0de9af8",
+                "url": "https://api.github.com/repos/oat-sa/extension-tao-delivery-rdf/zipball/4282cf2ff8a9e60f1f7c7bbce6a6551c1c24561d",
+                "reference": "4282cf2ff8a9e60f1f7c7bbce6a6551c1c24561d",
                 "shasum": ""
             },
             "require": {
@@ -1623,7 +1623,7 @@
                 "TAO",
                 "computer-based-assessment"
             ],
-            "time": "2020-04-24T08:40:44+00:00"
+            "time": "2020-02-06T13:34:27+00:00"
         },
         {
             "name": "oat-sa/extension-tao-eventlog",
@@ -4199,7 +4199,7 @@
         },
         {
             "name": "symfony/dotenv",
-            "version": "v4.4.9",
+            "version": "v4.4.10",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/dotenv.git",
@@ -4252,11 +4252,25 @@
                 "env",
                 "environment"
             ],
+            "funding": [
+                {
+                    "url": "https://symfony.com/sponsor",
+                    "type": "custom"
+                },
+                {
+                    "url": "https://github.com/fabpot",
+                    "type": "github"
+                },
+                {
+                    "url": "https://tidelift.com/funding/github/packagist/symfony/symfony",
+                    "type": "tidelift"
+                }
+            ],
             "time": "2020-05-26T09:42:42+00:00"
         },
         {
             "name": "symfony/lock",
-            "version": "v3.4.41",
+            "version": "v3.4.42",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/lock.git",
@@ -4314,6 +4328,20 @@
                 "redlock",
                 "semaphore"
             ],
+            "funding": [
+                {
+                    "url": "https://symfony.com/sponsor",
+                    "type": "custom"
+                },
+                {
+                    "url": "https://github.com/fabpot",
+                    "type": "github"
+                },
+                {
+                    "url": "https://tidelift.com/funding/github/packagist/symfony/symfony",
+                    "type": "tidelift"
+                }
+            ],
             "time": "2020-05-08T10:38:31+00:00"
         },
         {
@@ -4658,6 +4686,20 @@
                 "constructor",
                 "instantiate"
             ],
+            "funding": [
+                {
+                    "url": "https://www.doctrine-project.org/sponsorship.html",
+                    "type": "custom"
+                },
+                {
+                    "url": "https://www.patreon.com/phpdoctrine",
+                    "type": "patreon"
+                },
+                {
+                    "url": "https://tidelift.com/funding/github/packagist/doctrine%2Finstantiator",
+                    "type": "tidelift"
+                }
+            ],
             "time": "2020-05-29T17:27:14+00:00"
         },
         {
@@ -5127,16 +5169,16 @@
         },
         {
             "name": "phpunit/phpunit",
-            "version": "8.5.5",
+            "version": "8.5.6",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/phpunit.git",
-                "reference": "63dda3b212a0025d380a745f91bdb4d8c985adb7"
+                "reference": "3f9c4079d1407cd84c51c02c6ad1df6ec2ed1348"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/sebastianbergmann/phpunit/zipball/63dda3b212a0025d380a745f91bdb4d8c985adb7",
-                "reference": "63dda3b212a0025d380a745f91bdb4d8c985adb7",
+                "url": "https://api.github.com/repos/sebastianbergmann/phpunit/zipball/3f9c4079d1407cd84c51c02c6ad1df6ec2ed1348",
+                "reference": "3f9c4079d1407cd84c51c02c6ad1df6ec2ed1348",
                 "shasum": ""
             },
             "require": {
@@ -5206,7 +5248,17 @@
                 "testing",
                 "xunit"
             ],
-            "time": "2020-05-22T13:51:52+00:00"
+            "funding": [
+                {
+                    "url": "https://phpunit.de/donate.html",
+                    "type": "custom"
+                },
+                {
+                    "url": "https://github.com/sebastianbergmann",
+                    "type": "github"
+                }
+            ],
+            "time": "2020-06-15T10:45:47+00:00"
         },
         {
             "name": "sebastian/code-unit-reverse-lookup",
@@ -5870,5 +5922,6 @@
     "prefer-stable": false,
     "prefer-lowest": false,
     "platform": [],
-    "platform-dev": []
+    "platform-dev": [],
+    "plugin-api-version": "1.1.0"
 }