diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 1178de6..1d03a06 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -29,7 +29,7 @@ jobs:
     steps:
       - name: Checkout
         id: checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Setup Docker BuildX
         id: setup-buildx
@@ -62,7 +62,7 @@ jobs:
     steps:
       - name: Checkout
         id: checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Test Local Action
         id: test-action
diff --git a/.github/workflows/linter.yml b/.github/workflows/linter.yml
index a6849f6..2689c63 100644
--- a/.github/workflows/linter.yml
+++ b/.github/workflows/linter.yml
@@ -21,7 +21,7 @@ jobs:
     steps:
       - name: Checkout
         id: checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           fetch-depth: 0
 
@@ -32,4 +32,6 @@ jobs:
           DEFAULT_BRANCH: main
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
           VALIDATE_ALL_CODEBASE: true
+          VALIDATE_BIOME_FORMAT: false
+          VALIDATE_BIOME_LINT: false
           VALIDATE_GITHUB_ACTIONS_ZIZMOR: false
diff --git a/Dockerfile b/Dockerfile
index a472548..53a5e44 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -7,5 +7,12 @@ WORKDIR /usr/src
 # Copy any source file(s) required for the action
 COPY entrypoint.sh .
 
+# Create a non-root user and switch to it
+RUN addgroup -S actiongroup && adduser -S actionuser -G actiongroup && \
+    chown -R actionuser:actiongroup /usr/src && \
+    chmod +x /usr/src/entrypoint.sh
+
+USER actionuser
+
 # Configure the container to be run as an executable
 ENTRYPOINT ["/usr/src/entrypoint.sh"]