diff --git a/.github/workflows/android-build.yml b/.github/workflows/android-build.yml
index b2faedf5..8142aca1 100644
--- a/.github/workflows/android-build.yml
+++ b/.github/workflows/android-build.yml
@@ -19,7 +19,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: 'Checkout'
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: 'Download Android Web.bundle Artifact (built frontend)'
         if: inputs.semver == ''  # Only if workflow fired from frontend-build.yml
diff --git a/.github/workflows/client-image.yml b/.github/workflows/client-image.yml
index 81ad19b5..1fc27563 100644
--- a/.github/workflows/client-image.yml
+++ b/.github/workflows/client-image.yml
@@ -19,7 +19,7 @@ jobs:
     name: 'Push Docker image to Docker Hub'
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
 
     - name: 'Copy Static' # Needed since Github actions does not support symlinks
       run: cp -r frontend/static nodeapp/static
diff --git a/.github/workflows/codeql-client.yml b/.github/workflows/codeql-client.yml
index 5c4fe6fa..5c122cd5 100644
--- a/.github/workflows/codeql-client.yml
+++ b/.github/workflows/codeql-client.yml
@@ -41,7 +41,7 @@ jobs:
 
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
 
     # Initializes the CodeQL tools for scanning.
     - name: Initialize CodeQL
diff --git a/.github/workflows/codeql-coordinator.yml b/.github/workflows/codeql-coordinator.yml
index f83b3749..2090faba 100644
--- a/.github/workflows/codeql-coordinator.yml
+++ b/.github/workflows/codeql-coordinator.yml
@@ -40,7 +40,7 @@ jobs:
 
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
 
     # Initializes the CodeQL tools for scanning.
     - name: Initialize CodeQL
diff --git a/.github/workflows/coordinator-image.yml b/.github/workflows/coordinator-image.yml
index 68930027..7275a00f 100644
--- a/.github/workflows/coordinator-image.yml
+++ b/.github/workflows/coordinator-image.yml
@@ -13,7 +13,7 @@ jobs:
     name: 'Push Docker image to Docker Hub'
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
 
     - name: 'Download Basic main.js Artifact'
       if: inputs.semver == ''  # Only if workflow fired from frontend-build.yml
diff --git a/.github/workflows/django-test.yml b/.github/workflows/django-test.yml
index 111e34ba..8c69a2e3 100644
--- a/.github/workflows/django-test.yml
+++ b/.github/workflows/django-test.yml
@@ -26,7 +26,7 @@ jobs:
 
     steps:
     - name: 'Checkout'
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
     - name: 'Set up Python ${{ matrix.python-version }}'
       uses: actions/setup-python@v4
       with:
diff --git a/.github/workflows/frontend-build.yml b/.github/workflows/frontend-build.yml
index 7b95de2e..9bf8e9b3 100644
--- a/.github/workflows/frontend-build.yml
+++ b/.github/workflows/frontend-build.yml
@@ -28,7 +28,7 @@ jobs:
 
     steps:
     - name: 'Checkout'
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
     - name: 'Setup node'
       uses: actions/setup-node@v3
       with:
diff --git a/.github/workflows/js-linter.yml b/.github/workflows/js-linter.yml
index bc704fb6..76803e04 100644
--- a/.github/workflows/js-linter.yml
+++ b/.github/workflows/js-linter.yml
@@ -21,7 +21,7 @@ jobs:
 
     steps:
       - name: Check out Git repository
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: 'Setup node'
         uses: actions/setup-node@v3
diff --git a/.github/workflows/lnproxy-sync.yml b/.github/workflows/lnproxy-sync.yml
index c4e58f92..eab68072 100644
--- a/.github/workflows/lnproxy-sync.yml
+++ b/.github/workflows/lnproxy-sync.yml
@@ -15,7 +15,7 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Fetch and process lnproxy relay JSON file
         run: |
diff --git a/.github/workflows/py-linter.yml b/.github/workflows/py-linter.yml
index e686ac03..67906e5a 100644
--- a/.github/workflows/py-linter.yml
+++ b/.github/workflows/py-linter.yml
@@ -21,7 +21,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: actions/setup-python@v4
         with:
           python-version: '3.10'
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 3bb5e1a1..ac654ade 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -15,7 +15,7 @@ jobs:
       semver: ${{ steps.validate.outputs.semver }}
     steps:
     - name: 'Checkout'
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
     - name: 'Validate versions match (tag, backend, frontend, Android)'
       id: validate
       shell: bash
@@ -73,7 +73,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - name: Release
         id: create-release
         uses: softprops/action-gh-release@v1