diff --git a/src/transformer/utils/get_activity/lesson.php b/src/transformer/utils/get_activity/lesson.php
index 52aba5ebb..077d155fb 100644
--- a/src/transformer/utils/get_activity/lesson.php
+++ b/src/transformer/utils/get_activity/lesson.php
@@ -43,7 +43,7 @@ function lesson(array $config, \stdClass $course, \stdClass $entry, int $cmid) {
         ...base(),
         'id' => $entryurl,
         'definition' => [
-            'type' => 'http://adlnet.gov/expapi/activities/lesson-session'
+            'type' => 'https://xapi.edlm/profiles/edlm-lms/concepts/activity-types/lesson-session'
         ],
     ];
 
diff --git a/tests/mod_lesson/lesson_ended/statements.json b/tests/mod_lesson/lesson_ended/statements.json
index 1606acbd7..61ba7463c 100644
--- a/tests/mod_lesson/lesson_ended/statements.json
+++ b/tests/mod_lesson/lesson_ended/statements.json
@@ -16,7 +16,7 @@
     "object": {
       "id": "http://www.example.org/mod/lesson/view.php?id=1#lesson",
       "definition": {
-        "type": "http://adlnet.gov/expapi/activities/lesson-session",
+        "type": "https://xapi.edlm/profiles/edlm-lms/concepts/activity-types/lesson-session",
         "name": {
           "en": "test_lesson"
         },
diff --git a/tests/mod_lesson/lesson_restarted/statements.json b/tests/mod_lesson/lesson_restarted/statements.json
index 2e8a34b8c..6b8d9f1e5 100644
--- a/tests/mod_lesson/lesson_restarted/statements.json
+++ b/tests/mod_lesson/lesson_restarted/statements.json
@@ -16,7 +16,7 @@
     "object": {
       "id": "http://www.example.org/mod/lesson/view.php?id=1#lesson",
       "definition": {
-        "type": "http://adlnet.gov/expapi/activities/lesson-session",
+        "type": "https://xapi.edlm/profiles/edlm-lms/concepts/activity-types/lesson-session",
         "name": {
           "en": "test_lesson"
         },
diff --git a/tests/mod_lesson/lesson_resumed/statements.json b/tests/mod_lesson/lesson_resumed/statements.json
index 751d31775..522bf4a55 100644
--- a/tests/mod_lesson/lesson_resumed/statements.json
+++ b/tests/mod_lesson/lesson_resumed/statements.json
@@ -16,7 +16,7 @@
     "object": {
       "id": "http://www.example.org/mod/lesson/view.php?id=1#lesson",
       "definition": {
-        "type": "http://adlnet.gov/expapi/activities/lesson-session",
+        "type": "https://xapi.edlm/profiles/edlm-lms/concepts/activity-types/lesson-session",
         "name": {
           "en": "test_lesson"
         },
diff --git a/tests/mod_lesson/lesson_started/statements.json b/tests/mod_lesson/lesson_started/statements.json
index da579f078..2d6efc1ea 100644
--- a/tests/mod_lesson/lesson_started/statements.json
+++ b/tests/mod_lesson/lesson_started/statements.json
@@ -16,7 +16,7 @@
     "object": {
       "id": "http://www.example.org/mod/lesson/view.php?id=1#lesson",
       "definition": {
-        "type": "http://adlnet.gov/expapi/activities/lesson-session",
+        "type": "https://xapi.edlm/profiles/edlm-lms/concepts/activity-types/lesson-session",
         "name": {
           "en": "test_lesson"
         },