diff --git a/.github/workflows/build.yaml b/.github/workflows/build.yaml
index c8146bc5..1d793e98 100644
--- a/.github/workflows/build.yaml
+++ b/.github/workflows/build.yaml
@@ -36,15 +36,22 @@ jobs:
         #  - torch: 1.9.0
         #    torchvision: 0.10.0
         #    python-version: 3.9
+    # https://github.com/marketplace/actions/setup-miniconda#use-a-default-shell
+    defaults:
+      run:
+        shell: bash -l {0}
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v2
-        # See: https://github.com/marketplace/actions/setup-conda
-      - name: Setup anaconda
-        uses: s-weigand/setup-conda@v1
+        uses: actions/checkout@v3
+        # See: https://github.com/marketplace/actions/setup-miniconda
+      - name: Setup miniconda
+        uses: conda-incubator/setup-miniconda@v2
         with:
+          auto-update-conda: true
+          miniforge-variant: Mambaforge
+          channels: "conda-forge, salilab, pytorch, pyg"
           python-version: ${{ matrix.python-version }}
-          conda-channels: "conda-forge, salilab, pytorch, pyg"
+          use-mamba: true
       #- name: Set up Python ${{ matrix.python-version }}
       #  uses: actions/setup-python@v2
       #  with:
diff --git a/.github/workflows/code-style.yaml b/.github/workflows/code-style.yaml
index 400fec73..964f278f 100644
--- a/.github/workflows/code-style.yaml
+++ b/.github/workflows/code-style.yaml
@@ -9,7 +9,7 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
 
       - name: Install Python
         uses: actions/setup-python@v2
diff --git a/.github/workflows/code-tests-docker.yaml b/.github/workflows/code-tests-docker.yaml
index 93c5eeae..e483b30a 100644
--- a/.github/workflows/code-tests-docker.yaml
+++ b/.github/workflows/code-tests-docker.yaml
@@ -6,17 +6,23 @@ jobs:
   code-tests-docker:
     name: Run code tests (docker)
     runs-on: "ubuntu-latest"
+    defaults:
+      run:
+        shell: bash -l {0}
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v2
-
-      # See: https://github.com/marketplace/actions/setup-conda
-      - name: Setup anaconda
-        uses: s-weigand/setup-conda@v1
+        uses: actions/checkout@v3
+      # See: https://github.com/marketplace/actions/setup-miniconda
+      - name: Setup miniconda
+        uses: conda-incubator/setup-miniconda@v2
         with:
+          auto-update-conda: true
+          miniforge-variant: Mambaforge
+          channels: conda-forge
           python-version: 3.8
-          conda-channels: "conda-forge"
+          use-mamba: true
+
 
       # # Build cache of environment
       # - name: Cache conda environment
diff --git a/.github/workflows/minimal__install.yaml b/.github/workflows/minimal__install.yaml
index f05e0092..27f4d5ca 100644
--- a/.github/workflows/minimal__install.yaml
+++ b/.github/workflows/minimal__install.yaml
@@ -18,19 +18,26 @@ on:
 jobs:
   build_cpu:
     runs-on: ubuntu-latest
+    # https://github.com/marketplace/actions/setup-miniconda#use-a-default-shell
+    defaults:
+      run:
+        shell: bash -l {0}
+
     strategy:
       matrix:
         python-version: [3.7, 3.8, 3.9, 3.11]
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v2
-        # See: https://github.com/marketplace/actions/setup-conda
-      - name: Setup anaconda
-        uses: s-weigand/setup-conda@v1
+        uses: actions/checkout@v3
+        # See: https://github.com/marketplace/actions/setup-miniconda
+      - name: Setup miniconda
+        uses: conda-incubator/setup-miniconda@v2
         with:
+          auto-update-conda: true
+          miniforge-variant: Mambaforge
+          conda-channels: conda-forge
           python-version: ${{ matrix.python-version }}
-          conda-channels: "conda-forge"
-
+          use-mamba: true
       - name: Install Graphein
         run: pip install -e .
       - name: Install Extras