diff --git a/.github/workflows/create-release.yml b/.github/workflows/create-release.yml
index 0955221..365b9fc 100644
--- a/.github/workflows/create-release.yml
+++ b/.github/workflows/create-release.yml
@@ -11,7 +11,7 @@ jobs:
     if: github.repository == 'NHSDigital/terraform-aws-mesh-client' && !contains(github.event.head_commit.message, 'tag release version:')
     steps:
       - name: checkout
-        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
+        uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6
         with:
           fetch-depth: 0
 
diff --git a/.github/workflows/merge-develop.yml b/.github/workflows/merge-develop.yml
index a622b4b..23e7250 100644
--- a/.github/workflows/merge-develop.yml
+++ b/.github/workflows/merge-develop.yml
@@ -11,7 +11,7 @@ jobs:
     if: github.repository == 'NHSDigital/terraform-aws-mesh-client' && !contains(github.event.head_commit.message, 'tag release version:')
     steps:
       - name: checkout
-        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
+        uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6
         with:
           fetch-depth: 0
 
diff --git a/.github/workflows/pull-request.yml b/.github/workflows/pull-request.yml
index b751ea8..526b32a 100644
--- a/.github/workflows/pull-request.yml
+++ b/.github/workflows/pull-request.yml
@@ -11,7 +11,7 @@ jobs:
     if: github.repository == 'NHSDigital/terraform-aws-mesh-client'
     steps:
       - name: checkout
-        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
+        uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6
         with:
           fetch-depth: 0
 
@@ -61,7 +61,7 @@ jobs:
     if: github.repository == 'NHSDigital/terraform-aws-mesh-client'
     steps:
       - name: checkout
-        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
+        uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6
         with:
           fetch-depth: 0
 
@@ -94,7 +94,7 @@ jobs:
     if: github.repository == 'NHSDigital/terraform-aws-mesh-client'
     steps:
       - name: checkout
-        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
+        uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6
         with:
           fetch-depth: 0