diff --git a/easystacks/software.eessi.io/2023.06/eessi-2023.06-eb-4.9.4-2023a.yml b/easystacks/software.eessi.io/2023.06/eessi-2023.06-eb-4.9.4-2023a.yml
index 3ebc4ebc56..d0e2cffe60 100644
--- a/easystacks/software.eessi.io/2023.06/eessi-2023.06-eb-4.9.4-2023a.yml
+++ b/easystacks/software.eessi.io/2023.06/eessi-2023.06-eb-4.9.4-2023a.yml
@@ -13,3 +13,11 @@ easyconfigs:
       options:
         # see https://github.com/easybuilders/easybuild-easyconfigs/pull/21679
         from-commit: 7106f63160b1418d605882dd02ba151d099300bd
+  - jax-0.4.25-gfbf-2023a.eb:
+      options:
+        # see https://github.com/easybuilders/easybuild-easyblocks/pull/3486
+        include-easyblocks-from-commit: 59fd120c0e5330ff7266ca7aacd105d09be4389a
+  - AlphaFold-2.3.2-foss-2023a.eb:
+      options:
+        # see https://github.com/easybuilders/easybuild-easyconfigs/pull/21628
+        from-commit: 4204600998712ff595841c34d3f6a26192ec2eb4
diff --git a/eb_hooks.py b/eb_hooks.py
index 33bdf53c52..c3143663b4 100644
--- a/eb_hooks.py
+++ b/eb_hooks.py
@@ -88,7 +88,7 @@ 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;
-    memory_hungry_build = self.name in ['libxc', 'MBX', 'TensorFlow']
+    memory_hungry_build = self.name in ['jax', 'libxc', 'MBX', 'TensorFlow']
     # on A64FX systems, (HBM) memory is typically scarce, so we need to use fewer cores for some builds
     cpu_target = get_eessi_envvar('EESSI_SOFTWARE_SUBDIR')
     memory_hungry_build_a64fx = cpu_target == CPU_TARGET_A64FX and self.name in ['Qt5', 'ROOT']