diff --git a/tests/test_site_platform_density.py b/tests/test_site_platform_density.py
index 92db586da..dce531ab2 100644
--- a/tests/test_site_platform_density.py
+++ b/tests/test_site_platform_density.py
@@ -262,7 +262,12 @@ class VisibleWordsStayUnderTheirCeiling(unittest.TestCase):
 # elements (outside scripts and styles, as validate_site counts them) and
 # bytes of HTML, on the built site of 2026-10-27.
 BEFORE_WEIGHT = {
-    "batocera": (12, 18_854, 1_211_117),
+    # Batocera's x86_64 RetroArch downloads buildbot cores, which its pages
+    # name since 2026-11-09: each file lists every core that reads it with
+    # its citations (the Game Boy Advance went from 4 readers to 10), and
+    # Elektronika BK, FM Towns and Nintendo DS moved to part pages. Built
+    # site of 27c33b966: 13 pages, 15,662 elements, 1,356,360 bytes.
+    "batocera": (13, 18_854, 1_356_360),
     "amberelec": (1, 7_928, 473_388),
     "romm": (2, 9_561, 572_487),
     "retroarch": (14, 21_503, 1_430_802),