diff --git a/ci/run_ci.sh b/ci/run_ci.sh
index 1b5f27231..f6c21642b 100755
--- a/ci/run_ci.sh
+++ b/ci/run_ci.sh
@@ -61,7 +61,7 @@ module use $GDAS_MODULE_USE
 module load GDAS/$TARGET
 echo "---------------------------------------------------" >> $outfile
 rm -rf log.ctest
-ctest -R gdasapp --output-on-failure &>> log.ctest
+ctest -j12 -R gdasapp --output-on-failure &>> log.ctest
 ctest_status=$?
 npassed=$(cat log.ctest | grep "tests passed")
 if [ $ctest_status -eq 0 ]; then
diff --git a/ci/run_gw_ci.sh b/ci/run_gw_ci.sh
index ba1874107..dde762782 100755
--- a/ci/run_gw_ci.sh
+++ b/ci/run_gw_ci.sh
@@ -62,7 +62,7 @@ module use $repodir/sorc/gdas.cd/modulefiles
 module load GDAS/$TARGET
 echo "---------------------------------------------------" >> $outfile
 rm -rf log.ctest
-ctest -R gdasapp --output-on-failure &>> log.ctest
+ctest -j12 -R gdasapp --output-on-failure &>> log.ctest
 ctest_status=$?
 npassed=$(cat log.ctest | grep "tests passed")
 if [ $ctest_status -eq 0 ]; then