diff --git a/backend/code_coverage_backend/hgmo.py b/backend/code_coverage_backend/hgmo.py
index 104f04aa6..98fbe6795 100644
--- a/backend/code_coverage_backend/hgmo.py
+++ b/backend/code_coverage_backend/hgmo.py
@@ -13,7 +13,9 @@
 
 __hgmo: Dict[str, Tuple[int, float]] = {}
 
-HGMO_REVISION_URL = "https://hg.mozilla.org/{repository}/json-rev/{revision}"
+HGMO_REVISION_URL = (
+    "https://hg.mozilla.org/{repository}/json-automationrelevance/{revision}"
+)
 HGMO_PUSHES_URL = "https://hg.mozilla.org/{repository}/json-pushes"
 
 
@@ -29,7 +31,8 @@ def hgmo_revision_details(repository, changeset):
     url = HGMO_REVISION_URL.format(repository=repository, revision=changeset)
     resp = requests.get(url)
     resp.raise_for_status()
-    data = resp.json()
+    assert "changesets" in resp.json(), "Missing changesets"
+    data = resp.json()["changesets"][-1]
     assert "pushid" in data, "Missing pushid"
     out = data["pushid"], data["date"][0]
 
diff --git a/backend/tests/conftest.py b/backend/tests/conftest.py
index 4d3e8f7a8..e17430656 100644
--- a/backend/tests/conftest.py
+++ b/backend/tests/conftest.py
@@ -144,9 +144,9 @@ def mock_hgmo():
 
     def _test_rev(request):
         # The push id is in the first 3 characters of the revision requested
-        revision = request.path_url[17:]
+        revision = request.path_url[33:]
         assert len(revision) == 32
-        resp = {"pushid": int(revision[:3]), "date": [time.time(), 0]}
+        resp = {"changesets": [{"pushid": int(revision[:3]), "date": [time.time(), 0]}]}
         return (200, headers, json.dumps(resp))
 
     def _changesets(push_id):
@@ -185,7 +185,7 @@ def _test_pushes(request):
     with responses.RequestsMock(assert_all_requests_are_fired=False) as resps:
         resps.add_callback(
             responses.GET,
-            re.compile("https://hg.mozilla.org/(.+)/json-rev/(.+)"),
+            re.compile("https://hg.mozilla.org/(.+)/json-automationrelevance/(.+)"),
             callback=_test_rev,
         )
         resps.add_callback(