diff --git a/.forgejo/workflows/test.yml b/.forgejo/workflows/test.yml
index 4cbd5f2..ef58281 100644
--- a/.forgejo/workflows/test.yml
+++ b/.forgejo/workflows/test.yml
@@ -53,7 +53,7 @@ jobs:
           make -C sby install
       - run: |
           git clone --depth=1 --recursive --branch=0.45 https://github.com/YosysHQ/yosys.git
-          make -C yosys -j$(nproc)
+          make -C yosys -j2
           make -C yosys install
       - run: |
           wget -O firrtl.tar.gz https://github.com/llvm/circt/releases/download/firtool-1.86.0/firrtl-bin-linux-x64.tar.gz