diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 82ee562..79e50fe 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -36,25 +36,25 @@ jobs:
       # unfortunately there isn't a clean way to upload artifacts separately so just copy
       # for each new package right now
       - name: Upload core artifact
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v6
         with:
           name: dist-core
           path: dist-core/*
 
       - name: Upload data-oc artifact
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v6
         with:
           name: dist-data-oc
           path: dist-data-oc/*
 
       - name: Upload demo-ocpapi artifact
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v6
         with:
           name: dist-demo-ocpapi
           path: dist-demo-ocpapi/*
 
       - name: Upload applications-cattsunami artifact
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v6
         with:
           name: dist-applications-cattsunami
           path: dist-applications-cattsunami/*
diff --git a/.github/workflows/build_docs.yml b/.github/workflows/build_docs.yml
index fe47fbe..efa8bb8 100644
--- a/.github/workflows/build_docs.yml
+++ b/.github/workflows/build_docs.yml
@@ -40,7 +40,7 @@ jobs:
         jupyter-book build docs
 
     - name: Upload documentation artifact
-      uses: actions/upload-artifact@v4
+      uses: actions/upload-artifact@v6
       with:
         name: docs-html
         path: docs/_build/html/*