diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 4139b264..da2e3a8b 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -28,18 +28,10 @@ jobs:
       matrix:
         python: [3.8, 3.9]
         os: [ubuntu-20.04]
-        mpi:
-          - mpich
-          - openmpi
-          - intelmpi
     name: Test on Python ${{ matrix.python }}
     steps:
       - name: Checkout branch
         uses: actions/checkout@v3
-      - name: Setup MPI (${{ matrix.mpi }})
-        uses: mpi4py/setup-mpi@v1
-        with:
-          mpi: ${{ matrix.mpi }}
       - name: Setup python
         uses: actions/setup-python@v4
         with:
diff --git a/requirements.txt b/requirements.txt
index dcf30e08..4b6058b4 100755
--- a/requirements.txt
+++ b/requirements.txt
@@ -14,7 +14,6 @@ leidenalg>=0.10.0
 loompy>=3.0.5
 mapclassify>=2.4.2
 matplotlib<=3.5.3
-mpi4py
 nbconvert
 networkx>=2.6.3
 # ngs_tools>=1.6.0