diff --git a/.github/workflows/github-ci.yml b/.github/workflows/github-ci.yml
index 29f40614..46a2845f 100644
--- a/.github/workflows/github-ci.yml
+++ b/.github/workflows/github-ci.yml
@@ -73,6 +73,14 @@ jobs:
       if: ${{ matrix.python-version != 'pypy3.9-v7.3.15' }}
       run: python -m pip install .[test,numpy,gurobi,highs]
 
+    - name: Install mip for testing (CPython)
+      if: ${{ matrix.python-version == '3.12' }}
+      run: python -m pip install .[test,numpy,gurobi]
+
+    - name: Install mip for testing (CPython)
+      if: ${{ matrix.python-version != '3.12' }}
+      run: python -m pip install .[test,numpy,gurobi,highs]
+
     - name: list installed packages
       run: python -m pip list