diff --git a/.github/workflows/c_actions.yml b/.github/workflows/c_actions.yml
index 3eef2fc94b..9a24941bdc 100644
--- a/.github/workflows/c_actions.yml
+++ b/.github/workflows/c_actions.yml
@@ -23,9 +23,9 @@ jobs:
     timeout-minutes: 10
     steps:
     - name: Checkout
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
     - name: Checkout SupportScripts
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
       with:
         repository: SpiNNakerManchester/SupportScripts
         path: support
diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
index 18e566b850..5dadd7a779 100644
--- a/.github/workflows/publish.yml
+++ b/.github/workflows/publish.yml
@@ -28,9 +28,9 @@ jobs:
     timeout-minutes: 10
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - name: Checkout SupportScripts
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           repository: SpiNNakerManchester/SupportScripts
           path: support
diff --git a/.github/workflows/python_actions.yml b/.github/workflows/python_actions.yml
index e72e34bfb4..d3c5713451 100644
--- a/.github/workflows/python_actions.yml
+++ b/.github/workflows/python_actions.yml
@@ -34,9 +34,9 @@ jobs:
 
     steps:
     - name: Checkout
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
     - name: Checkout SupportScripts
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
       with:
         repository: SpiNNakerManchester/SupportScripts
         path: support
@@ -97,9 +97,9 @@ jobs:
         python-version: ["3.8"]
     steps:
     - name: Checkout
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
     - name: Checkout SupportScripts
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
       with:
         repository: SpiNNakerManchester/SupportScripts
         path: support