diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 4f9573b0..d6bd8f55 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -12,7 +12,7 @@ jobs:
          export OPENRAM_HOME="`pwd`/compiler"
          export OPENRAM_TECH="`pwd`/technology:/software/PDKs/skywater-tech"
          export OPENRAM_TMP="`pwd`/scn4me_subm"
-         python3-coverage run -p $OPENRAM_HOME/tests/regress.py -j 32 -k -t scn4m_subm
+         python3-coverage run -p $OPENRAM_HOME/tests/regress.py -j 20 -k -t scn4m_subm
       - name: Archive
         uses: actions/upload-artifact@v2
         with:
@@ -29,7 +29,7 @@ jobs:
          export OPENRAM_HOME="`pwd`/compiler"
          export OPENRAM_TECH="`pwd`/technology:/software/PDKs/skywater-tech"
          export OPENRAM_TMP="`pwd`/freepdk45"
-         python3-coverage run -p $OPENRAM_HOME/tests/regress.py -j 32 -k -t freepdk45
+         python3-coverage run -p $OPENRAM_HOME/tests/regress.py -j 20 -k -t freepdk45
       - name: Archive
         uses: actions/upload-artifact@v2
         with: