diff --git a/swh/loader/package/puppet/loader.py b/swh/loader/package/puppet/loader.py
--- a/swh/loader/package/puppet/loader.py
+++ b/swh/loader/package/puppet/loader.py
@@ -6,7 +6,7 @@
 from datetime import datetime
 import json
 from pathlib import Path
-from typing import Any, Dict, Iterator, Optional, Sequence, Tuple
+from typing import Any, Dict, Iterator, List, Optional, Sequence, Tuple
 
 import attr
 import iso8601
@@ -59,13 +59,15 @@
         self,
         storage: StorageInterface,
         url: str,
-        artifacts: Dict[str, Any],
+        artifacts: List[Dict[str, Any]],
         **kwargs,
     ):
 
         super().__init__(storage=storage, url=url, **kwargs)
         self.url = url
-        self.artifacts = artifacts
+        self.artifacts: Dict[str, Dict] = {
+            artifact["version"]: artifact for artifact in artifacts
+        }
 
     def get_versions(self) -> Sequence[str]:
         """Get all released versions of a Puppet module
@@ -133,13 +135,11 @@
         version: str = intrinsic_metadata["version"]
         assert version == p_info.version
 
-        description = intrinsic_metadata["summary"]
         author = Person.from_fullname(intrinsic_metadata["author"].encode())
 
         message = (
             f"Synthetic release for Puppet source package {p_info.name} "
-            f"version {version}\n\n"
-            f"{description}\n"
+            f"version {version}\n"
         )
 
         return Release(
diff --git a/swh/loader/package/puppet/tests/test_puppet.py b/swh/loader/package/puppet/tests/test_puppet.py
--- a/swh/loader/package/puppet/tests/test_puppet.py
+++ b/swh/loader/package/puppet/tests/test_puppet.py
@@ -18,8 +18,8 @@
 
 ORIGINS = {
     "url": "https://forge.puppet.com/modules/saz/memcached",
-    "artifacts": {
-        "1.0.0": {
+    "artifacts": [
+        {
             "url": "https://forgeapi.puppet.com/v3/files/saz-memcached-1.0.0.tar.gz",  # noqa: B950
             "version": "1.0.0",
             "filename": "saz-memcached-1.0.0.tar.gz",
@@ -28,7 +28,7 @@
                 "length": 763,
             },
         },
-        "8.1.0": {
+        {
             "url": "https://forgeapi.puppet.com/v3/files/saz-memcached-8.1.0.tar.gz",  # noqa: B950
             "version": "8.1.0",
             "filename": "saz-memcached-8.1.0.tar.gz",
@@ -38,7 +38,7 @@
                 "sha256": "0dbb1470c64435700767e9887d0cf70203b1ae59445c401d5d200f2dabb3226e",  # noqa: B950
             },
         },
-    },
+    ],
 }
 
 
@@ -66,7 +66,7 @@
     assert load_status["status"] == "eventful"
     assert load_status["snapshot_id"] is not None
 
-    expected_snapshot_id = "9a8e76a8a6eae5285059d9f6d5083a99317727cf"
+    expected_snapshot_id = "c3da002f1dc325be29004fa64312f71ba50b9fbc"
 
     assert expected_snapshot_id == load_status["snapshot_id"]
 
@@ -78,11 +78,11 @@
                 target_type=TargetType.ALIAS,
             ),
             b"releases/1.0.0": SnapshotBranch(
-                target=hash_to_bytes("50eb560bb5322cd149359b9cc8debc78834bcfad"),
+                target=hash_to_bytes("83b3463dd35d44dbae4bfe917a9b127924a14bbd"),
                 target_type=TargetType.RELEASE,
             ),
             b"releases/8.1.0": SnapshotBranch(
-                target=hash_to_bytes("2f5722136d775dd48fe85fabdd274f1e2d7fcf22"),
+                target=hash_to_bytes("90592c01fe7f96f32a88bc611193b305cb77cc03"),
                 target_type=TargetType.RELEASE,
             ),
         },
@@ -103,17 +103,16 @@
     } == stats
 
     assert swh_storage.release_get(
-        [hash_to_bytes("2f5722136d775dd48fe85fabdd274f1e2d7fcf22")]
+        [hash_to_bytes("90592c01fe7f96f32a88bc611193b305cb77cc03")]
     )[0] == Release(
         name=b"8.1.0",
-        message=b"Synthetic release for Puppet source package saz-memcached version 8.1.0\n\n"
-        b"Manage memcached via Puppet\n",
+        message=b"Synthetic release for Puppet source package saz-memcached version 8.1.0\n",
         target=hash_to_bytes("1b9a2dbc80f954e1ba4b2f1c6344d1ce4e84ab7c"),
         target_type=ObjectType.DIRECTORY,
         synthetic=True,
         author=Person(fullname=b"saz", name=b"saz", email=None),
         date=TimestampWithTimezone.from_iso8601("2022-07-11T03:34:55-07:00"),
-        id=hash_to_bytes("2f5722136d775dd48fe85fabdd274f1e2d7fcf22"),
+        id=hash_to_bytes("90592c01fe7f96f32a88bc611193b305cb77cc03"),
     )
 
     assert_last_visit_matches(
diff --git a/swh/loader/package/puppet/tests/test_tasks.py b/swh/loader/package/puppet/tests/test_tasks.py
--- a/swh/loader/package/puppet/tests/test_tasks.py
+++ b/swh/loader/package/puppet/tests/test_tasks.py
@@ -24,14 +24,14 @@
         url="some-url/api/packages/some-package",
         visit_type="aur",
         extra_loader_arguments={
-            "artifacts": {
-                "1.0.0": {
+            "artifacts": [
+                {
                     "url": "https://domain/some-package-1.0.0.tar.gz",
                     "version": "1.0.0",
                     "filename": "some-module-1.0.0.tar.gz",
                     "last_update": "2011-11-20T13:40:30-08:00",
                 },
-            }
+            ]
         },
     )