diff --git a/.github/workflows/build-android.yml b/.github/workflows/build-android.yml
index 8dc264681f..5fc24d8d34 100644
--- a/.github/workflows/build-android.yml
+++ b/.github/workflows/build-android.yml
@@ -51,7 +51,7 @@ jobs:
           distribution: zulu
 
       - name: Setup Android SDK
-        uses: android-actions/setup-android@v3
+        uses: android-actions/setup-android@9fc6c4e9069bf8d3d10b2204b1fb8f6ef7065407 # v3
         with:
           log-accepted-android-sdk-licenses: false
 
diff --git a/.github/workflows/build-msys.yml b/.github/workflows/build-msys.yml
index 431d9b6a53..57cec7c166 100644
--- a/.github/workflows/build-msys.yml
+++ b/.github/workflows/build-msys.yml
@@ -43,7 +43,7 @@ jobs:
       #    save: ${{ github.event_name == 'push' && github.ref == 'refs/heads/master' }}
 
       - name: Setup ${{ matrix.sys }}
-        uses: msys2/setup-msys2@v2
+        uses: msys2/setup-msys2@cafece8e6baf9247cf9b1bf95097b0b983cc558d # v2
         with:
           update: true
           msystem: ${{matrix.sys}}
diff --git a/.github/workflows/docker.yml b/.github/workflows/docker.yml
index 9b0a3f8a70..f824f1fead 100644
--- a/.github/workflows/docker.yml
+++ b/.github/workflows/docker.yml
@@ -56,15 +56,15 @@ jobs:
 
       - name: Set up QEMU
         if: ${{ matrix.config.tag != 's390x' }}
-        uses: docker/setup-qemu-action@v3
+        uses: docker/setup-qemu-action@c7c53464625b32c7a7e944ae62b3e17d2b600130 # v3
         with:
           image: tonistiigi/binfmt:qemu-v7.0.0-28
 
       - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v3
+        uses: docker/setup-buildx-action@8d2750c68a42422c14e847fe6c8ac0403b4cbd6f # v3
 
       - name: Log in to Docker Hub
-        uses: docker/login-action@v3
+        uses: docker/login-action@c94ce9fb468520275223c153574b00df6fe4bcc9 # v3
         with:
           registry: ghcr.io
           username: ${{ github.repository_owner }}
@@ -127,7 +127,7 @@ jobs:
 
       - name: Build and push Full Docker image (tagged + versioned)
         if: ${{ (github.event_name == 'push' || github.event_name == 'schedule' || github.event_name == 'workflow_dispatch') && matrix.config.full == true }}
-        uses: docker/build-push-action@v6
+        uses: docker/build-push-action@10e90e3645eae34f1e60eeb005ba3a3d33f178e8 # v6
         with:
           context: .
           push: true
@@ -152,7 +152,7 @@ jobs:
 
       - name: Build and push Light Docker image (tagged + versioned)
         if: ${{ (github.event_name == 'push' || github.event_name == 'schedule' || github.event_name == 'workflow_dispatch') && matrix.config.light == true }}
-        uses: docker/build-push-action@v6
+        uses: docker/build-push-action@10e90e3645eae34f1e60eeb005ba3a3d33f178e8 # v6
         with:
           context: .
           push: true
@@ -177,7 +177,7 @@ jobs:
 
       - name: Build and push Server Docker image (tagged + versioned)
         if: ${{ (github.event_name == 'push' || github.event_name == 'schedule' || github.event_name == 'workflow_dispatch') && matrix.config.server == true }}
-        uses: docker/build-push-action@v6
+        uses: docker/build-push-action@10e90e3645eae34f1e60eeb005ba3a3d33f178e8 # v6
         with:
           context: .
           push: true
diff --git a/.github/workflows/editorconfig.yml b/.github/workflows/editorconfig.yml
index 702dc89f5b..a2d4d0a3a7 100644
--- a/.github/workflows/editorconfig.yml
+++ b/.github/workflows/editorconfig.yml
@@ -23,7 +23,7 @@ jobs:
     runs-on: ubuntu-slim
     steps:
       - uses: actions/checkout@v6
-      - uses: editorconfig-checker/action-editorconfig-checker@v2
+      - uses: editorconfig-checker/action-editorconfig-checker@840e866d93b8e032123c23bac69dece044d4d84c # v2.2.0
         with:
           version: v3.0.3
       - run: editorconfig-checker
diff --git a/.github/workflows/gguf-publish.yml b/.github/workflows/gguf-publish.yml
index 2d29279134..a1fba046a9 100644
--- a/.github/workflows/gguf-publish.yml
+++ b/.github/workflows/gguf-publish.yml
@@ -38,7 +38,7 @@ jobs:
     - name: Build package
       run: cd gguf-py && poetry build
     - name: Publish package
-      uses: pypa/gh-action-pypi-publish@release/v1
+      uses: pypa/gh-action-pypi-publish@ed0c53931b1dc9bd32cbe73a98c7f6766f8a527e # release/v1
       with:
         password: ${{ secrets.PYPI_API_TOKEN }}
         packages-dir: gguf-py/dist
diff --git a/.github/workflows/python-lint.yml b/.github/workflows/python-lint.yml
index e21b3b6568..1e5d64c1ae 100644
--- a/.github/workflows/python-lint.yml
+++ b/.github/workflows/python-lint.yml
@@ -31,6 +31,6 @@ jobs:
         with:
           python-version: "3.11"
       - name: flake8 Lint
-        uses: py-actions/flake8@v2
+        uses: py-actions/flake8@84ec6726560b6d5bd68f2a5bed83d62b52bb50ba # v2
         with:
             plugins: "flake8-no-print"