diff --git a/.github/workflows/ci-github-actions.yaml b/.github/workflows/ci-github-actions.yaml
index 6cceb8af01..14f9d73330 100644
--- a/.github/workflows/ci-github-actions.yaml
+++ b/.github/workflows/ci-github-actions.yaml
@@ -21,6 +21,8 @@ jobs:
         jobname:
           [
             GCC9-NoMPI-Debug-Real,
+            GCC9-NoMPI-NoOMP-Real,
+            GCC9-NoMPI-NoOMP-Complex,
             GCC9-MPI-Gcov-Real,
             GCC9-MPI-Gcov-Complex,
             GCC11-NoMPI-Werror-Real,
@@ -36,6 +38,16 @@ jobs:
               image: williamfgc/qmcpack-ci:ubuntu20-openmpi
               options: -u 1001
 
+          - jobname: GCC9-NoMPI-NoOMP-Real
+            container:
+              image: williamfgc/qmcpack-ci:ubuntu20-openmpi
+              options: -u 1001
+
+          - jobname: GCC9-NoMPI-NoOMP-Complex
+            container:
+              image: williamfgc/qmcpack-ci:ubuntu20-openmpi
+              options: -u 1001
+
           - jobname: GCC9-MPI-Gcov-Real
             container:
               image: williamfgc/qmcpack-ci:ubuntu20-openmpi
diff --git a/tests/test_automation/github-actions/ci/run_step.sh b/tests/test_automation/github-actions/ci/run_step.sh
index 9d76a36071..e0a250df56 100755
--- a/tests/test_automation/github-actions/ci/run_step.sh
+++ b/tests/test_automation/github-actions/ci/run_step.sh
@@ -68,6 +68,17 @@ case "$1" in
               -DCMAKE_BUILD_TYPE=Debug \
               ${GITHUB_WORKSPACE}
       ;;
+      *"GCC9-NoMPI-NoOMP-"*)
+        echo 'Configure for disabling OpenMP with QMC_OMP=0'
+        cmake -GNinja \
+              -DCMAKE_C_COMPILER=gcc \
+              -DCMAKE_CXX_COMPILER=g++ \
+              -DQMC_MPI=0 \
+              -DQMC_OMP=0 \
+              -DQMC_COMPLEX=$IS_COMPLEX \
+              -DCMAKE_BUILD_TYPE=RelWithDebInfo \
+              ${GITHUB_WORKSPACE}
+      ;;
       *"GCC9-MPI-Gcov-"*)
         echo 'Configure for code coverage with gcc and gcovr -DENABLE_GCOV=TRUE and upload reports to Codecov'
         cmake -GNinja \