diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index ccf448d..4407446 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -17,7 +17,7 @@ jobs:
     runs-on: macos-26
     timeout-minutes: 30
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@d23441a48e516b6c34aea4fa41551a30e30af803 # v6.1.0
       - name: Install Rust
         run: |
           curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y --profile minimal
@@ -34,7 +34,7 @@ jobs:
     runs-on: macos-26
     timeout-minutes: 30
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@d23441a48e516b6c34aea4fa41551a30e30af803 # v6.1.0
       - name: Install Rust
         run: |
           curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y --profile minimal
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index bac2c62..2efbb30 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -17,7 +17,7 @@ jobs:
     environment: publish
     timeout-minutes: 60
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@d23441a48e516b6c34aea4fa41551a30e30af803 # v6.1.0
         with:
           fetch-depth: 0
           persist-credentials: false
@@ -45,7 +45,7 @@ jobs:
           permission-contents: write
           permission-pull-requests: write
       - name: Release
-        uses: goreleaser/goreleaser-action@v7
+        uses: goreleaser/goreleaser-action@f06c13b6b1a9625abc9e6e439d9c05a8f2190e94 # v7.2.3
         with:
           distribution: goreleaser-pro
           version: "~> v2"
@@ -61,7 +61,7 @@ jobs:
     runs-on: macos-26
     timeout-minutes: 60
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@d23441a48e516b6c34aea4fa41551a30e30af803 # v6.1.0
         with:
           fetch-depth: 0
           persist-credentials: false
@@ -72,13 +72,13 @@ jobs:
       - name: Install release targets
         run: rustup target add aarch64-apple-darwin x86_64-apple-darwin
       - name: Release dry run
-        uses: goreleaser/goreleaser-action@v7
+        uses: goreleaser/goreleaser-action@f06c13b6b1a9625abc9e6e439d9c05a8f2190e94 # v7.2.3
         with:
           distribution: goreleaser-pro
           version: "~> v2"
           args: release --skip=publish --snapshot --clean
       - name: Upload dry-run artifacts
-        uses: actions/upload-artifact@v6
+        uses: actions/upload-artifact@b7c566a772e6b6bfb58ed0dc250532a479d7789f # v6.0.0
         with:
           name: softnet-snapshot
           path: dist/**