diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index b817449..2b716b1 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -69,7 +69,7 @@ jobs:
           Pull the library from [Maven Central](https://central.sonatype.com/artifact/wtf.metio.devcontainer/devcontainer.java).
       - id: setup-java
         name: Set up Java
-        uses: actions/setup-java@v5
+        uses: actions/setup-java@1bcf9fb12cf4aa7d266a90ae39939e61372fe520 # v5
         with:
           java-version: 25
           distribution: temurin
@@ -79,7 +79,7 @@ jobs:
           server-password: MAVEN_CENTRAL_TOKEN
       - id: gpg
         name: GPG Key
-        uses: timheuer/base64-to-file@v2
+        uses: timheuer/base64-to-file@dfa5a5dd38803cb4f5c3a081eeb28e8362d43e9c # v2
         with:
           fileName: signing.key.asc
           fileDir: ${{ github.workspace }}
@@ -103,7 +103,7 @@ jobs:
           MAVEN_CENTRAL_TOKEN: ${{ secrets.MAVEN_CENTRAL_TOKEN }}
       - id: create_release
         name: Create Release
-        uses: softprops/action-gh-release@v3
+        uses: softprops/action-gh-release@718ea10b132b3b2eba29c1007bb80653f286566b # v3
         with:
           tag_name: ${{ needs.prepare.outputs.version }}
           name: ${{ needs.prepare.outputs.version }}
diff --git a/.github/workflows/verify.yml b/.github/workflows/verify.yml
index a8c02bd..aeb008e 100644
--- a/.github/workflows/verify.yml
+++ b/.github/workflows/verify.yml
@@ -27,17 +27,17 @@ jobs:
     steps:
       - id: checkout
         name: Clone Git Repository
-        uses: actions/checkout@v7
+        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7
       - id: graal
         name: Set up GraalVM
-        uses: graalvm/setup-graalvm@v1
+        uses: graalvm/setup-graalvm@6f3fa030c4b8f77c1f554a860f593a654538fa38 # v1
         with:
           version: latest
           java-version: 25
           github-token: ${{ secrets.GITHUB_TOKEN }}
       - id: cache
         name: Cache Maven Repository
-        uses: actions/cache@v6
+        uses: actions/cache@55cc8345863c7cc4c66a329aec7e433d2d1c52a9 # v6
         with:
           path: ~/.m2/repository
           key: ${{ runner.os }}-maven-${{ hashFiles('**/pom.xml') }}