diff --git a/easystacks/software.eessi.io/2023.06/eessi-2023.06-eb-4.9.2-2023a.yml b/easystacks/software.eessi.io/2023.06/eessi-2023.06-eb-4.9.2-2023a.yml
index 34ec3257e8..b7f45b9703 100644
--- a/easystacks/software.eessi.io/2023.06/eessi-2023.06-eb-4.9.2-2023a.yml
+++ b/easystacks/software.eessi.io/2023.06/eessi-2023.06-eb-4.9.2-2023a.yml
@@ -15,3 +15,7 @@ easyconfigs:
   - LSD2-2.4.1-GCCcore-12.3.0.eb
   - MAFFT-7.520-GCC-12.3.0-with-extensions.eb
   - ncbi-vdb-3.0.10-gompi-2023a.eb
+  - Single-cell-python-bundle-2024.02-foss-2023a.eb:
+      options:
+        # merge commit for https://github.com/easybuilders/easybuild-easyconfigs/pull/20116
+        from-commit: 2234e91d9c7a20edc0db7fb0380d883ebf1efead
diff --git a/eb_hooks.py b/eb_hooks.py
index e6f0cf0dd2..db2a9de927 100644
--- a/eb_hooks.py
+++ b/eb_hooks.py
@@ -82,7 +82,7 @@ def post_ready_hook(self, *args, **kwargs):
     # 'parallel' easyconfig parameter is set via EasyBlock.set_parallel in ready step based on available cores.
     # here we reduce parallellism to only use half of that for selected software,
     # to avoid failing builds/tests due to out-of-memory problems
-    if self.name in ['TensorFlow', 'libxc']:
+    if self.name in ['Clang', 'libxc', 'TensorFlow']:
         parallel = self.cfg['parallel']
         if parallel > 1:
             self.cfg['parallel'] = parallel // 2