diff --git a/.github/workflows/ci-pr.yml b/.github/workflows/ci-pr.yml
index e6449433..c2f587a2 100644
--- a/.github/workflows/ci-pr.yml
+++ b/.github/workflows/ci-pr.yml
@@ -132,7 +132,7 @@ jobs:
 
       - name: Store artifacts
         if: ${{ always() }}
-        uses: actions/upload-artifact@330a01c490aca151604b8cf639adc76d48f6c5d4
+        uses: actions/upload-artifact@b7c566a772e6b6bfb58ed0dc250532a479d7789f
         with:
           name: voc4cat-outbox_${{ env.RUN_DATE }}_run${{ GITHUB.RUN_ID }}
           path: outbox/
diff --git a/.github/workflows/merge.yml b/.github/workflows/merge.yml
index 4c58acb7..aeaaa343 100644
--- a/.github/workflows/merge.yml
+++ b/.github/workflows/merge.yml
@@ -129,7 +129,7 @@ jobs:
         # This step is not required and may be removed.
         # It may be helpful for trouble shooting.
         if: ${{ always() }}
-        uses: actions/upload-artifact@330a01c490aca151604b8cf639adc76d48f6c5d4
+        uses: actions/upload-artifact@b7c566a772e6b6bfb58ed0dc250532a479d7789f
         with:
           name: voc4cat-pages-dev-content
           path: publish/
diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
index 217c39ec..48d153b9 100644
--- a/.github/workflows/publish.yml
+++ b/.github/workflows/publish.yml
@@ -126,7 +126,7 @@ jobs:
         # This step is not required and may be removed.
         # It may be helpful for troubleshooting.
         if: ${{ always() }}
-        uses: actions/upload-artifact@330a01c490aca151604b8cf639adc76d48f6c5d4
+        uses: actions/upload-artifact@b7c566a772e6b6bfb58ed0dc250532a479d7789f
         with:
           name: voc4cat-pages-release-${{ github.ref_name }}
           path: publish/
diff --git a/vocabularies/voc4cat/concept_scheme.ttl b/vocabularies/voc4cat/concept_scheme.ttl
index edb186f2..1e1b4b41 100644
--- a/vocabularies/voc4cat/concept_scheme.ttl
+++ b/vocabularies/voc4cat/concept_scheme.ttl
@@ -16,7 +16,7 @@ PREFIX xsd: <http://www.w3.org/2001/XMLSchema#>
         <https://orcid.org/0000-0002-5898-1820> ,
         <https://orcid.org/0000-0002-6242-2167> ;
     dcterms:identifier "https://doi.org/10.5281/zenodo.8313340" ;
-    dcterms:modified "2025-12-28"^^xsd:date ;
+    dcterms:modified "2025-12-31"^^xsd:date ;
     dcterms:publisher <https://w3id.org/nfdi4cat/> ;
     rdfs:seeAlso <https://doi.org/10.5281/zenodo.8313340> ;
     owl:versionInfo "v_40c0ddaf" ;