diff --git a/swh/loader/package/deposit/loader.py b/swh/loader/package/deposit/loader.py
--- a/swh/loader/package/deposit/loader.py
+++ b/swh/loader/package/deposit/loader.py
@@ -71,10 +71,7 @@
     def build_revision(
         self, a_metadata: Dict, uncompressed_path: str, directory: Sha1Git
     ) -> Optional[Revision]:
-        # FIXME: the deposit read api should no longer need to build the revision entry
-        # as this would avoid unnecessary indirection. This would also align with what
-        # other package loaders do
-        revision_data = a_metadata.pop("revision")
+        depo = a_metadata.pop("deposit")
 
         # Note:
         # `date` and `committer_date` are always transmitted by the deposit read api
@@ -82,18 +79,23 @@
         # revision.
 
         # date: codemeta:dateCreated if any, deposit completed_date otherwise
-        date = TimestampWithTimezone.from_dict(revision_data["date"])
+        date = TimestampWithTimezone.from_dict(depo["author_date"])
         # commit_date: codemeta:datePublished if any, deposit completed_date otherwise
-        commit_date = TimestampWithTimezone.from_dict(revision_data["committer_date"])
+        commit_date = TimestampWithTimezone.from_dict(depo["committer_date"])
+
+        name, id, collection = [depo[k] for k in ["fullname", "id", "collection"]]
+        message = f"{name}: Deposit {id} in collection {collection}".encode("utf-8")
+
+        author = parse_author(depo["author"])
 
         return Revision(
             type=RevisionType.TAR,
-            message=revision_data["message"].encode("utf-8"),
-            author=parse_author(revision_data["author"]),
+            message=message,
+            author=author,
             date=date,
-            committer=parse_author(revision_data["committer"]),
+            committer=author,
             committer_date=commit_date,
-            parents=[hash_to_bytes(p) for p in revision_data.get("parents", [])],
+            parents=[hash_to_bytes(p) for p in depo["revision_parents"]],
             directory=directory,
             synthetic=True,
             metadata={
diff --git a/swh/loader/package/deposit/tests/data/https_deposit.softwareheritage.org/hello_2.10.json b/swh/loader/package/deposit/tests/data/https_deposit.softwareheritage.org/hello_2.10.json
--- a/swh/loader/package/deposit/tests/data/https_deposit.softwareheritage.org/hello_2.10.json
+++ b/swh/loader/package/deposit/tests/data/https_deposit.softwareheritage.org/hello_2.10.json
@@ -31,8 +31,7 @@
       }
     }
   },
-  "revision": {
-    "synthetic": true,
+  "deposit": {
     "committer_date": {
       "timestamp": {
         "seconds": 1507389428,
@@ -41,18 +40,15 @@
       "offset": 0,
       "negative_utc": false
     },
-    "message": "hal: Deposit 666 in collection hal",
+    "fullname": "hal",
+    "id": "666",
+    "collection":"hal",
     "author": {
       "name": "Software Heritage",
       "fullname": "Software Heritage",
       "email": "robot@softwareheritage.org"
     },
-    "committer": {
-      "name": "Software Heritage",
-      "fullname": "Software Heritage",
-      "email": "robot@softwareheritage.org"
-    },
-    "date": {
+    "author_date": {
       "timestamp": {
         "seconds": 1507389428,
         "microseconds": 0
@@ -60,21 +56,7 @@
       "offset": 0,
       "negative_utc": false
     },
-    "metadata": {
-      "@xmlns": [
-        "http://www.w3.org/2005/Atom"
-      ],
-      "author": [
-        "some awesome author",
-        "another one",
-        "no one"
-      ],
-      "external_identifier": "some-external-id",
-      "codemeta:dateCreated": "2017-10-07T15:17:08Z",
-      "url": "https://hal-test.archives-ouvertes.fr/some-external-id"
-    },
-    "type": "tar",
-    "parents": []
+    "revision_parents": []
   },
   "branch_name": "master"
 }
diff --git a/swh/loader/package/deposit/tests/data/https_deposit.softwareheritage.org/hello_2.11.json b/swh/loader/package/deposit/tests/data/https_deposit.softwareheritage.org/hello_2.11.json
--- a/swh/loader/package/deposit/tests/data/https_deposit.softwareheritage.org/hello_2.11.json
+++ b/swh/loader/package/deposit/tests/data/https_deposit.softwareheritage.org/hello_2.11.json
@@ -32,8 +32,7 @@
       }
     }
   },
-  "revision": {
-    "synthetic": true,
+  "deposit": {
     "committer_date": {
       "timestamp": {
         "seconds": 1507474800,
@@ -42,18 +41,15 @@
       "offset": 0,
       "negative_utc": false
     },
-    "message": "hal: Deposit 777 in collection hal",
+    "fullname": "hal",
+    "id": 777,
+    "collection": "hal",
     "author": {
       "name": "Software Heritage",
       "fullname": "Software Heritage",
       "email": "robot@softwareheritage.org"
     },
-    "committer": {
-      "name": "Software Heritage",
-      "fullname": "Software Heritage",
-      "email": "robot@softwareheritage.org"
-    },
-    "date": {
+    "author_date": {
       "timestamp": {
         "seconds": 1507389428,
         "microseconds": 0
@@ -61,22 +57,7 @@
       "offset": 0,
       "negative_utc": false
     },
-    "metadata": {
-      "@xmlns": [
-        "http://www.w3.org/2005/Atom"
-      ],
-      "author": [
-        "some awesome author",
-        "another one",
-        "no one"
-      ],
-      "external_identifier": "some-external-id",
-      "codemeta:dateCreated": "2017-10-07T15:17:08Z",
-      "codemeta:datePublished": "2017-10-08T15:00:00Z",
-      "url": "https://hal-test.archives-ouvertes.fr/some-external-id"
-    },
-    "type": "tar",
-    "parents": []
+    "revision_parents": []
   },
   "branch_name": "master"
 }
diff --git a/swh/loader/package/deposit/tests/test_deposit.py b/swh/loader/package/deposit/tests/test_deposit.py
--- a/swh/loader/package/deposit/tests/test_deposit.py
+++ b/swh/loader/package/deposit/tests/test_deposit.py
@@ -253,5 +253,5 @@
     # Retrieve the revision
     revision = next(loader.storage.revision_get([hash_to_bytes(revision_id)]))
     assert revision
-    for field_date in ["committer_date", "date"]:
-        assert revision[field_date] == raw_meta["revision"][field_date]
+    assert revision["committer_date"] == raw_meta["deposit"]["committer_date"]
+    assert revision["date"] == raw_meta["deposit"]["author_date"]