diff --git a/.github/workflows/build-docs.yaml b/.github/workflows/build-docs.yaml
index 8bcfb1f..6b5d424 100644
--- a/.github/workflows/build-docs.yaml
+++ b/.github/workflows/build-docs.yaml
@@ -36,14 +36,14 @@ jobs:
           python-version: "3.10"
 
       - name: Install uv
-        uses: astral-sh/setup-uv@v7
+        uses: astral-sh/setup-uv@37802adc94f370d6bfd71619e3f0bf239e1f3b78 # v7.6.0
         with:
           enable-cache: true
           cache-dependency-glob: "uv.lock"
 
       - name: Mint a docs read token
         id: docs_token
-        uses: actions/create-github-app-token@v2
+        uses: actions/create-github-app-token@fee1f7d63c2ff003460e3d139729b119787bc349 # v2.2.2
         with:
           app-id: ${{ secrets.NIXTLA_DOCS_REPO_ACCESS_APP_ID }}
           private-key: ${{ secrets.NIXTLA_DOCS_REPO_ACCESS_PRIVATE_KEY }}
@@ -54,7 +54,7 @@ jobs:
         run: uv sync --group dev --upgrade-package mkdocstrings-parser
 
       # setup quarto for rendering example/tutorial nbs
-      - uses: quarto-dev/quarto-actions/setup@v2
+      - uses: quarto-dev/quarto-actions/setup@8a96df13519ee81fd526f2dfca5962811136661b # v2.2.0
         with:
           version: 1.4.515
 
diff --git a/.github/workflows/lint.yaml b/.github/workflows/lint.yaml
index f74a33e..d3f1ab4 100644
--- a/.github/workflows/lint.yaml
+++ b/.github/workflows/lint.yaml
@@ -17,7 +17,7 @@ jobs:
         uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
 
       - name: Set up python
-        uses: actions/setup-python@5fda3b95a4ea91299a34e894583c3862153e4b97 # 7.0.0
+        uses: actions/setup-python@5fda3b95a4ea91299a34e894583c3862153e4b97 # v7.0.0
         with:
           python-version: "3.12"
 
diff --git a/.github/workflows/pytest.yml b/.github/workflows/pytest.yml
index ead4faa..524c21c 100644
--- a/.github/workflows/pytest.yml
+++ b/.github/workflows/pytest.yml
@@ -24,16 +24,16 @@ jobs:
         python-version: ["3.10", "3.11", "3.12", "3.13", "3.14"]
     steps:
       - name: Clone repo
-        uses: actions/checkout@v7.0.1
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
         with:
           submodules: true
 
-      - uses: actions/setup-python@v7
+      - uses: actions/setup-python@5fda3b95a4ea91299a34e894583c3862153e4b97 # v7.0.0
         with:
           python-version: ${{ matrix.python-version }}
 
       - name: Install uv
-        uses: astral-sh/setup-uv@v7
+        uses: astral-sh/setup-uv@37802adc94f370d6bfd71619e3f0bf239e1f3b78 # v7.6.0
         with:
           enable-cache: true
           cache-dependency-glob: "uv.lock"