diff --git a/.github/workflows/quick-regression.yml b/.github/workflows/quick-regression.yml
index e79a8e9737..3cea960987 100644
--- a/.github/workflows/quick-regression.yml
+++ b/.github/workflows/quick-regression.yml
@@ -84,7 +84,7 @@ jobs:
         then \
            python3 tools/regression-tests/run_tests.py \
                --lmp-bin=build/lmp \
-               --config-file=tools/regression-tests/config.yaml \
+               --config-file=tools/regression-tests/config_quick.yaml \
                --list-input=input-list-${{ matrix.idx }}.txt \
                --output-file=output-${{ matrix.idx }}.xml \
                --progress-file=progress-${{ matrix.idx }}.yaml \
diff --git a/tools/regression-tests/config.yaml b/tools/regression-tests/config.yaml
index 372d0db10b..6b793d0ce8 100644
--- a/tools/regression-tests/config.yaml
+++ b/tools/regression-tests/config.yaml
@@ -3,7 +3,7 @@
   nprocs: "4"
   args: "-cite none"
   mpiexec: "mpirun"
-  mpiexec_numproc_flag: "-np"
+  mpiexec_numproc_flag: "--host localhost:4 -np"
   tolerance:
     PotEng:
       abs: 1e-4