diff --git a/setup.py b/setup.py
index 36c1f59ff4..5f3e981559 100755
--- a/setup.py
+++ b/setup.py
@@ -53,9 +53,9 @@
         'packaging',
         'pandas!=2.2.0,!=2.2.1,!=2.2.2',  # ESMValCore PR2305
         'progressbar2',
-        'psyplot>=1.5.0',
+        'psyplot>=1.5.0',  # psy*<1.5.0 are not py312 compat
         'psy-maps>=1.5.0',
-        # 'psy-reg',  # not yet at 1.5.0 not yet py312
+        'psy-reg>=1.5.0',
         'psy-simple>=1.5.0',
         'pyproj>=2.1',
         'pys2index',