diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 659f5b76..54147a37 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -20,7 +20,7 @@ jobs:
     timeout-minutes: 5
     steps:
       - name: Project checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac # v4
 
       - name: Setup gradle build
         uses: ./.github/actions/setup-gradle-build
@@ -34,7 +34,7 @@ jobs:
     timeout-minutes: 10
     steps:
       - name: Project checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac # v4
 
       - name: Setup gradle build
         uses: ./.github/actions/setup-gradle-build
@@ -48,7 +48,7 @@ jobs:
     timeout-minutes: 15
     steps:
       - name: Project checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac # v4
 
       - name: Setup gradle build
         uses: ./.github/actions/setup-gradle-build
@@ -67,7 +67,7 @@ jobs:
         device-config: [ "pixel6api30aospatd" ]
     steps:
       - name: Project checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac # v4
 
       - name: Setup gradle build
         uses: ./.github/actions/setup-gradle-build
@@ -94,7 +94,7 @@ jobs:
     timeout-minutes: 15
     steps:
       - name: Project checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac # v4
 
       - name: Setup gradle build
         uses: ./.github/actions/setup-gradle-build