diff --git a/422_PySCF/NECI-20230620-foss-2023a.eb b/422_PySCF/NECI-20230620-foss-2023a.eb
index 31c5366..becc50b 100644
--- a/422_PySCF/NECI-20230620-foss-2023a.eb
+++ b/422_PySCF/NECI-20230620-foss-2023a.eb
@@ -31,14 +31,11 @@ dependencies = [
     ('HDF5', '1.14.0'),
 ]
 
-# disable tests ending up with SEGFAULT
-# preconfigopts = "sed -i '/back_spawn_excit_gen/d' '%(builddir)s/NECI_STABLE/unit_tests/CMakeLists.txt' && "
-
 # enable support for HDF5
 configopts = "-DENABLE_HDF5=ON"
 
 test_cmd = 'ctest'
-runtest = '-j 1'
+runtest = '-j'
 
 files_to_copy = ['bin', 'lib', (['modules'], 'include')]
 
@@ -49,6 +46,3 @@ sanity_check_paths = {
 }
 
 moduleclass = 'chem'
-
-# TODO
-# disabling parallel tests doesn't help