diff --git a/.github/workflows/regression.yml b/.github/workflows/regression.yml
index 26e09a4..3222f1c 100644
--- a/.github/workflows/regression.yml
+++ b/.github/workflows/regression.yml
@@ -19,7 +19,7 @@ jobs:
     - name: Update pip
       run: python -m pip install --upgrade pip
     - name: Install dependencies
-      run: sudo apt-get install g++-7 libgmp-dev libmpfr-dev libmpc-dev iverilog
+      run: sudo apt-get install g++-11 libgmp-dev libmpfr-dev libmpc-dev iverilog
     - name: Run regression test
       run: source regress.sh
       env: