diff --git a/.github/workflows/check-sdk.yml b/.github/workflows/check-sdk.yml
index 2f9f754..9e43140 100644
--- a/.github/workflows/check-sdk.yml
+++ b/.github/workflows/check-sdk.yml
@@ -14,11 +14,11 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Clone plugin
-        uses: actions/checkout@v3
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7
         with:
           submodules: recursive
       - name: Clone SDK
-        uses: actions/checkout@v3
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7
         with:
           repository: LedgerHQ/ethereum-plugin-sdk
           path: plugin-sdk
diff --git a/.github/workflows/ci-workflow.yml b/.github/workflows/ci-workflow.yml
index bae98db..d0da32a 100644
--- a/.github/workflows/ci-workflow.yml
+++ b/.github/workflows/ci-workflow.yml
@@ -30,7 +30,7 @@ jobs:
 
     steps:
       - name: Clone
-        uses: actions/checkout@v3
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7
         with:
           submodules: recursive
 
@@ -45,7 +45,7 @@ jobs:
       image: ghcr.io/ledgerhq/ledger-app-builder/ledger-app-builder-lite:latest
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7
         with:
           submodules: recursive
 
@@ -77,7 +77,7 @@ jobs:
 
     steps:
       - name: Clone
-        uses: actions/checkout@v3
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7
         with:
           submodules: recursive
 
@@ -113,7 +113,7 @@ jobs:
 
     steps:
       - name: Checkout app-ethereum
-        uses: actions/checkout@v3
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7
         with:
           repository: LedgerHQ/app-ethereum
           ref: ${{ ((github.base_ref || github.ref_name) == 'main' && 'master') || (github.base_ref || github.ref_name) }}
@@ -138,7 +138,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7
 
       - name: Download built binaries
         uses: actions/download-artifact@v3
diff --git a/.github/workflows/lint-workflow.yml b/.github/workflows/lint-workflow.yml
index 71e57a1..273553d 100644
--- a/.github/workflows/lint-workflow.yml
+++ b/.github/workflows/lint-workflow.yml
@@ -16,7 +16,7 @@ jobs:
 
     steps:
       - name: Clone
-        uses: actions/checkout@v3
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7
 
       - name: Lint
         uses: DoozyX/clang-format-lint-action@v0.15