diff --git a/.github/workflows/appainter-annotations.yml b/.github/workflows/appainter-annotations.yml
index bf958eaa..3cf93dad 100644
--- a/.github/workflows/appainter-annotations.yml
+++ b/.github/workflows/appainter-annotations.yml
@@ -21,7 +21,7 @@ jobs:
 
     steps:
       - name: Checkout 🛎️
-        uses: actions/checkout@v3
+        uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac # v4
 
       - name: Setup Dart 💻
         uses: dart-lang/setup-dart@v1.4
diff --git a/.github/workflows/appainter-builder.yml b/.github/workflows/appainter-builder.yml
index e3ad0d4a..9e525470 100644
--- a/.github/workflows/appainter-builder.yml
+++ b/.github/workflows/appainter-builder.yml
@@ -21,7 +21,7 @@ jobs:
 
     steps:
       - name: Checkout 🛎️
-        uses: actions/checkout@v3
+        uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac # v4
 
       - name: Setup Dart 💻
         uses: dart-lang/setup-dart@v1.4
@@ -54,7 +54,7 @@ jobs:
 
     steps:
       - name: Checkout 🛎️
-        uses: actions/checkout@v3
+        uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac # v4
 
       - name: Setup Dart 💻
         uses: dart-lang/setup-dart@v1.4
diff --git a/.github/workflows/example-app.yml b/.github/workflows/example-app.yml
index 082dda7f..ea0c2275 100644
--- a/.github/workflows/example-app.yml
+++ b/.github/workflows/example-app.yml
@@ -21,7 +21,7 @@ jobs:
 
     steps:
       - name: Checkout 🛎️
-        uses: actions/checkout@v3
+        uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac # v4
 
       - name: Get project Flutter version 🏷️
         id: fvm-config
@@ -68,7 +68,7 @@ jobs:
 
     steps:
       - name: Checkout 🛎️
-        uses: actions/checkout@v3
+        uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac # v4
 
       - name: Get project Flutter version 🏷️
         id: fvm-config
diff --git a/.github/workflows/github-actions.yml b/.github/workflows/github-actions.yml
index 40584261..f27f9fa3 100644
--- a/.github/workflows/github-actions.yml
+++ b/.github/workflows/github-actions.yml
@@ -17,7 +17,7 @@ jobs:
 
     steps:
       - name: Checkout 🛎️
-        uses: actions/checkout@v3
+        uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac # v4
 
       - name: Get project Flutter version 🏷️
         id: fvm-config
@@ -60,7 +60,7 @@ jobs:
 
     steps:
       - name: Checkout 🛎️
-        uses: actions/checkout@v3
+        uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac # v4
 
       - name: Get project Flutter version 🏷️
         id: fvm-config
@@ -101,7 +101,7 @@ jobs:
 
     steps:
       - name: Checkout 🛎️
-        uses: actions/checkout@v3
+        uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac # v4
         with:
           fetch-depth: 0
           ref: main
diff --git a/.github/workflows/post-dependency-update.yml b/.github/workflows/post-dependency-update.yml
index bd65cdeb..a09e3d48 100644
--- a/.github/workflows/post-dependency-update.yml
+++ b/.github/workflows/post-dependency-update.yml
@@ -14,7 +14,7 @@ jobs:
 
     steps:
       - name: Checkout 🛎️
-        uses: actions/checkout@v3
+        uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac # v4
         with:
           token: ${{ secrets.PAT }}
 
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 9902897e..f0b2732c 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -40,7 +40,7 @@ jobs:
 
     steps:
       - name: Checkout 🛎️
-        uses: actions/checkout@v3
+        uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac # v4
 
       - name: Get project Flutter version 🏷️
         id: fvm-config
@@ -100,7 +100,7 @@ jobs:
 
     steps:
       - name: Checkout 🛎️
-        uses: actions/checkout@v3
+        uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac # v4
         with:
           fetch-depth: 0
           token: ${{ secrets.PAT }}
@@ -176,7 +176,7 @@ jobs:
 
     steps:
       - name: Checkout 🛎️
-        uses: actions/checkout@v3
+        uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac # v4
         with:
           fetch-depth: 0
           ref: main
@@ -228,7 +228,7 @@ jobs:
 
     steps:
       - name: Checkout 🛎️
-        uses: actions/checkout@v3
+        uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac # v4
         with:
           token: ${{ secrets.PAT }}
           ref: main