diff --git a/.github/workflows/maven.yml b/.github/workflows/maven.yml
index 03be7d161a..d0d06e6466 100644
--- a/.github/workflows/maven.yml
+++ b/.github/workflows/maven.yml
@@ -23,7 +23,7 @@ jobs:
       matrix:
         os: [ubuntu-latest, windows-latest, macos-latest]
     steps:
-    - uses: actions/checkout@f43a0e5ff2bd294095638e18286ca9a3d1956744 # v3.6.0
+    - uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac # v4.0.0
     - name: Set up Java
       uses: actions/setup-java@cd89f46ac9d01407894225f350157564c9c7cee2 # v3.12.0
       with:
diff --git a/.github/workflows/sitedocs.yml b/.github/workflows/sitedocs.yml
index 9b344681c0..d7aef4db6d 100644
--- a/.github/workflows/sitedocs.yml
+++ b/.github/workflows/sitedocs.yml
@@ -22,11 +22,11 @@ jobs:
     - name: Inject slug/short variables
       uses: rlespinasse/github-slug-action@102b1a064a9b145e56556e22b18b19c624538d94 # v4.4.1
     - name: Checkout tycho code
-      uses: actions/checkout@f43a0e5ff2bd294095638e18286ca9a3d1956744 # v3.6.0
+      uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac # v4.0.0
       with:
        path: 'tycho'
     - name: Checkout page
-      uses: actions/checkout@f43a0e5ff2bd294095638e18286ca9a3d1956744 # v3.6.0
+      uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac # v4.0.0
       with:
        path: 'page'
        token: ${{ secrets.TYCHO_SITE_PAT }}
diff --git a/.github/workflows/verify-platform.yml b/.github/workflows/verify-platform.yml
index e8c44e164b..43b29a010c 100644
--- a/.github/workflows/verify-platform.yml
+++ b/.github/workflows/verify-platform.yml
@@ -15,11 +15,11 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Checkout tycho code
-      uses: actions/checkout@f43a0e5ff2bd294095638e18286ca9a3d1956744 # v3.6.0
+      uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac # v4.0.0
       with:
        path: 'tycho'
     - name: Checkout platform code
-      uses: actions/checkout@f43a0e5ff2bd294095638e18286ca9a3d1956744 # v3.6.0
+      uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac # v4.0.0
       with:
        path: 'platform'
        submodules: 'recursive'
diff --git a/.github/workflows/verify-platform2.yml b/.github/workflows/verify-platform2.yml
index 634f28afca..b6e03e152a 100644
--- a/.github/workflows/verify-platform2.yml
+++ b/.github/workflows/verify-platform2.yml
@@ -15,11 +15,11 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Checkout tycho code
-      uses: actions/checkout@f43a0e5ff2bd294095638e18286ca9a3d1956744 # v3.6.0
+      uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac # v4.0.0
       with:
        path: 'tycho'
     - name: Checkout platform code
-      uses: actions/checkout@f43a0e5ff2bd294095638e18286ca9a3d1956744 # v3.6.0
+      uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac # v4.0.0
       with:
        path: 'platform'
        submodules: 'recursive'