diff --git a/.github/dependabot.yml b/.github/dependabot.yml
index 178c587..0628c96 100644
--- a/.github/dependabot.yml
+++ b/.github/dependabot.yml
@@ -3,4 +3,9 @@ updates:
   - package-ecosystem: "pub"
     directory: "/"
     schedule:
-      interval: "weekly"
\ No newline at end of file
+      interval: "weekly"
+
+  - package-ecosystem: github-actions
+    directory: /
+    schedule:
+      interval: daily
diff --git a/.github/workflows/dependency-review.yml b/.github/workflows/dependency-review.yml
new file mode 100644
index 0000000..3f34562
--- /dev/null
+++ b/.github/workflows/dependency-review.yml
@@ -0,0 +1,27 @@
+# Dependency Review Action
+#
+# This Action will scan dependency manifest files that change as part of a Pull Request,
+# surfacing known-vulnerable versions of the packages declared or updated in the PR.
+# Once installed, if the workflow run is marked as required,
+# PRs introducing known-vulnerable packages will be blocked from merging.
+#
+# Source repository: https://github.com/actions/dependency-review-action
+name: 'Dependency Review'
+on: [pull_request]
+
+permissions:
+  contents: read
+
+jobs:
+  dependency-review:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Harden Runner
+        uses: step-security/harden-runner@63c24ba6bd7ba022e95695ff85de572c04a18142 # v2.7.0
+        with:
+          egress-policy: audit
+
+      - name: 'Checkout Repository'
+        uses: actions/checkout@f43a0e5ff2bd294095638e18286ca9a3d1956744 # v3.6.0
+      - name: 'Dependency Review'
+        uses: actions/dependency-review-action@0efb1d1d84fc9633afcdaad14c485cbbc90ef46c # v2.5.1
diff --git a/.github/workflows/pr-cicd.yml b/.github/workflows/pr-cicd.yml
index 550838d..2296996 100644
--- a/.github/workflows/pr-cicd.yml
+++ b/.github/workflows/pr-cicd.yml
@@ -30,8 +30,13 @@ jobs:
     timeout-minutes: 5
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
-      - uses: dart-lang/setup-dart@v1
+      - name: Harden Runner
+        uses: step-security/harden-runner@63c24ba6bd7ba022e95695ff85de572c04a18142 # v2.7.0
+        with:
+          egress-policy: audit
+
+      - uses: actions/checkout@f43a0e5ff2bd294095638e18286ca9a3d1956744 # v3.6.0
+      - uses: dart-lang/setup-dart@fedb1266e91cf51be2fdb382869461a434b920a3 # v1.6.2
         with:
           sdk: stable
       - name: Install dependencies
@@ -41,27 +46,32 @@ jobs:
     timeout-minutes: 5
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
-      - uses: dart-lang/setup-dart@v1
+      - name: Harden Runner
+        uses: step-security/harden-runner@63c24ba6bd7ba022e95695ff85de572c04a18142 # v2.7.0
+        with:
+          egress-policy: audit
+
+      - uses: actions/checkout@f43a0e5ff2bd294095638e18286ca9a3d1956744 # v3.6.0
+      - uses: dart-lang/setup-dart@fedb1266e91cf51be2fdb382869461a434b920a3 # v1.6.2
         with:
           sdk: stable
       - name: Install dependencies
         run: dart pub get
       - name: Install coverage
         run: dart pub global activate coverage
-      - uses: stelynx/dart-full-coverage@v1.1.1
+      - uses: stelynx/dart-full-coverage@fc91fc4cf52e65867c0ad0e54390d0fd4e22f7d8 # v1.1.1
         with:
           package: dart_pdf_reader
       - run: dart test --no-color test --file-reporter "json:unit.test.json" --coverage="coverage"
       - name: Convert coverage
         run: $HOME/.pub-cache/bin/format_coverage --lcov --in=coverage --out=coverage.lcov --report-on=lib --check-ignore
       - name: Upload coverage reports to Codecov
-        uses: codecov/codecov-action@v3
+        uses: codecov/codecov-action@ab904c41d6ece82784817410c45d8b8c02684457 # v3.1.6
         with:
           token: ${{ secrets.CODECOV_TOKEN }}
       - name: Test Report
         if: always()
-        uses: dorny/test-reporter@v1
+        uses: dorny/test-reporter@a923ed8851f90a1509b334ca82bd1c5c13a02bb2 # v1
         with:
           name: Unit Tests
           path: unit.test.json
diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
index 43ddd60..9d3fcb2 100644
--- a/.github/workflows/publish.yml
+++ b/.github/workflows/publish.yml
@@ -5,6 +5,9 @@ on:
     tags:
       - 'v[0-9]+.[0-9]+.[0-9]+*'
 
+permissions:
+  contents: read
+
 jobs:
   publish:
     permissions:
diff --git a/.github/workflows/scorecard.yml b/.github/workflows/scorecard.yml
index a573887..9c2bac6 100644
--- a/.github/workflows/scorecard.yml
+++ b/.github/workflows/scorecard.yml
@@ -31,6 +31,11 @@ jobs:
       # actions: read
 
     steps:
+      - name: Harden Runner
+        uses: step-security/harden-runner@63c24ba6bd7ba022e95695ff85de572c04a18142 # v2.7.0
+        with:
+          egress-policy: audit
+
       - name: "Checkout code"
         uses: actions/checkout@93ea575cb5d8a053eaa0ac8fa3b40d7e05a33cc8 # v3.1.0
         with: