diff --git a/.github/workflows/check_links.yml b/.github/workflows/check_links.yml
index e227a664..61a37dcd 100644
--- a/.github/workflows/check_links.yml
+++ b/.github/workflows/check_links.yml
@@ -19,7 +19,7 @@ jobs:
         uses: actions/checkout@v7.0.0
 
       - name: Install Python and just
-        uses: opensafely-core/setup-action@v1
+        uses: opensafely-core/setup-action@v1.6.1
         with:
           install-just: true
           python-version: '3.11'
diff --git a/.github/workflows/check_vale.yml b/.github/workflows/check_vale.yml
index 85c8eb55..eba00dca 100644
--- a/.github/workflows/check_vale.yml
+++ b/.github/workflows/check_vale.yml
@@ -16,7 +16,7 @@ jobs:
         uses: actions/checkout@v7.0.0
 
       - name: Install just
-        uses: opensafely-core/setup-action@v1
+        uses: opensafely-core/setup-action@v1.6.1
         with:
           install-just: true
 
diff --git a/.github/workflows/pages-deployment.yml b/.github/workflows/pages-deployment.yml
index f03493f7..c88b9e6c 100644
--- a/.github/workflows/pages-deployment.yml
+++ b/.github/workflows/pages-deployment.yml
@@ -21,7 +21,7 @@ jobs:
         uses: actions/checkout@v7.0.0
 
       - name: Install Python and just
-        uses: opensafely-core/setup-action@v1
+        uses: opensafely-core/setup-action@v1.6.1
         with:
           install-just: true
           python-version: '3.11'