diff --git a/.github/workflows/build-docs.yaml b/.github/workflows/build-docs.yaml
index 14c8b2800..0c112405b 100644
--- a/.github/workflows/build-docs.yaml
+++ b/.github/workflows/build-docs.yaml
@@ -15,10 +15,10 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Clone repo
-        uses: actions/checkout@d632683dd7b4114ad314bca15554477dd762a938 # v4.2.0
+        uses: actions/checkout@eef61447b9ff4aafe5dcd4e0bbf5d482be7e7871 # v4.2.1
 
       - name: Clone docs repo
-        uses: actions/checkout@d632683dd7b4114ad314bca15554477dd762a938 # v4.2.0
+        uses: actions/checkout@eef61447b9ff4aafe5dcd4e0bbf5d482be7e7871 # v4.2.1
         with:
           repository: Nixtla/docs
           ref: scripts
diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index a7a83aae6..bae3338ce 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -6,10 +6,6 @@ on:
   pull_request:
     branches: [main]
 
-defaults:
-  run:
-    shell: bash -l {0}
-
 concurrency:
   group: ${{ github.workflow }}-${{ github.ref }}
   cancel-in-progress: true
@@ -21,26 +17,27 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-latest, macos-13, windows-latest]
-        python-version: ['3.8', '3.9', '3.10', '3.11']
+        python-version: ["3.8", "3.9", "3.10", "3.11"]
         exclude:
           - os: windows-latest
-            python-version: '3.11'
+            python-version: "3.11"
     env:
       AWS_ACCESS_KEY_ID: ${{ secrets.AWS_ACCESS_KEY_ID_NIXTLA_TMP }}
       AWS_SECRET_ACCESS_KEY: ${{ secrets.AWS_SECRET_ACCESS_KEY_NIXTLA_TMP }}
     steps:
       - name: Clone repo
-        uses: actions/checkout@d632683dd7b4114ad314bca15554477dd762a938 # v4.2.0
+        uses: actions/checkout@eef61447b9ff4aafe5dcd4e0bbf5d482be7e7871 # v4.2.1
 
       - name: Set up environment
-        uses: mamba-org/setup-micromamba@f8b8a1e23a26f60a44c853292711bacfd3eac822 # v1.9.0
+        uses: actions/setup-python@f677139bbe7f9c59b41e40162b753c062f5d49a3 # 5.2.0
         with:
-          environment-file: environment-cpu.yml
-          create-args: python=${{ matrix.python-version }}
-          cache-environment: true
+          python-version: ${{ matrix.python-version }}
 
       - name: Install pip requirements
-        run: pip install ./
+        run: >
+          pip install uv &&
+          uv pip install --system -i https://download.pytorch.org/whl/cpu torch &&
+          uv pip install --system "numpy<2" ".[dev]"
 
       - name: Tests
         run: nbdev_test --do_print --timing --n_workers 0 --flags polars
diff --git a/.github/workflows/lint.yaml b/.github/workflows/lint.yaml
index ee68ba5c4..93090fa88 100644
--- a/.github/workflows/lint.yaml
+++ b/.github/workflows/lint.yaml
@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Clone repo
-        uses: actions/checkout@d632683dd7b4114ad314bca15554477dd762a938 # v4.2.0
+        uses: actions/checkout@eef61447b9ff4aafe5dcd4e0bbf5d482be7e7871 # v4.2.1
 
       - name: Set up python
         uses: actions/setup-python@f677139bbe7f9c59b41e40162b753c062f5d49a3 # 5.2.0
diff --git a/.github/workflows/python-publish.yml b/.github/workflows/python-publish.yml
index a070bdfe9..ad1a8e4e4 100644
--- a/.github/workflows/python-publish.yml
+++ b/.github/workflows/python-publish.yml
@@ -21,7 +21,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@d632683dd7b4114ad314bca15554477dd762a938 # v4.2.0
+      - uses: actions/checkout@eef61447b9ff4aafe5dcd4e0bbf5d482be7e7871 # v4.2.1
       - name: Set up Python
         uses: actions/setup-python@f677139bbe7f9c59b41e40162b753c062f5d49a3 # 5.2.0
         with:
@@ -33,7 +33,7 @@ jobs:
       - name: Build package
         run: python -m build
       - name: Publish package
-        uses: pypa/gh-action-pypi-publish@897895f1e160c830e369f9779632ebc134688e1b # v1.10.2
+        uses: pypa/gh-action-pypi-publish@f7600683efdcb7656dec5b29656edb7bc586e597 # v1.10.3
         with:
           user: __token__
           password: ${{ secrets.PYPI_API_TOKEN }}