diff --git a/.github/workflows/dry_run_workflow.yml b/.github/workflows/dry_run_workflow.yml
index 47bd2aa..2f12b4c 100644
--- a/.github/workflows/dry_run_workflow.yml
+++ b/.github/workflows/dry_run_workflow.yml
@@ -1,15 +1,18 @@
 name: Analyze and Test
 on: [push]
 
+env:
+  FLUTTER_VERSION: 2.x
+
 jobs:
   analyze:
     runs-on: ubuntu-latest
     name: Dart Analyze
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: subosito/flutter-action@v2
         with:
-          flutter-version: '2.x'
+          flutter-version: ${{ env.FLUTTER_VERSION }}
           channel: 'any'
       - run: flutter pub get
       - run: flutter analyze
@@ -18,10 +21,10 @@ jobs:
     runs-on: ubuntu-latest
     name: Flutter Test
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - uses: subosito/flutter-action@v2
       with:
-        flutter-version: '2.x'
+        flutter-version: ${{ env.FLUTTER_VERSION }}
         channel: 'any'
 
     - run: flutter pub get
@@ -32,7 +35,7 @@ jobs:
     name: Dart package score
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: axel-op/dart-package-analyzer@v3
         with:
           githubToken: ${{ secrets.GITHUB_TOKEN }}
@@ -42,10 +45,10 @@ jobs:
     name: Dart Publish Package Test
     needs: tests
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - uses: subosito/flutter-action@v2
       with:
-        flutter-version: '2.x'
+        flutter-version: ${{ env.FLUTTER_VERSION }}
         channel: 'any'
 
     - run: flutter pub publish --dry-run
diff --git a/.github/workflows/publish_main.yml b/.github/workflows/publish_main.yml
index 48a2113..66cfe98 100644
--- a/.github/workflows/publish_main.yml
+++ b/.github/workflows/publish_main.yml
@@ -10,8 +10,8 @@ jobs:
     name: Dart Analyze
 
     steps:
-      - uses: actions/checkout@v2
-      - uses: subosito/flutter-action@v1
+      - uses: actions/checkout@v4
+      - uses: subosito/flutter-action@v2
       - run: flutter pub get
       - run: flutter analyze
   score:
@@ -19,7 +19,7 @@ jobs:
     name: Dart package score
 
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       - uses: axel-op/dart-package-analyzer@v3
         with:
           githubToken: ${{ secrets.GITHUB_TOKEN }}
@@ -31,7 +31,7 @@ jobs:
     name: Dart Publish Package
     needs: analyze
     steps:
-      - uses: actions/checkout@v1
+      - uses: actions/checkout@v4
       - name: Setup credentials
         run: |
           mkdir -p ~/.pub-cache