diff --git a/.github/workflows/check.yml b/.github/workflows/check.yml
index 17f2737..6b7ce32 100644
--- a/.github/workflows/check.yml
+++ b/.github/workflows/check.yml
@@ -66,7 +66,7 @@ jobs:
           echo '```' >> $GITHUB_STEP_SUMMARY
           texlogsieve paper.log | tee -a "$GITHUB_STEP_SUMMARY" || true
           echo '```' >> $GITHUB_STEP_SUMMARY
-      - uses: actions/upload-artifact@v4
+      - uses: actions/upload-artifact@v5
         with:
           name: test-result
           path: |
@@ -100,7 +100,7 @@ jobs:
           # echo "## TeXcount LaTeX interpretation" >> $GITHUB_STEP_SUMMARY
           # echo "" >> $GITHUB_STEP_SUMMARY
           # cat "texcount.html-body" >> $GITHUB_STEP_SUMMARY
-      - uses: actions/upload-artifact@v4
+      - uses: actions/upload-artifact@v5
         with:
           name: word-count
           path: |
diff --git a/.github/workflows/update-files.yml b/.github/workflows/update-files.yml
index 9efcca7..1c09fbb 100644
--- a/.github/workflows/update-files.yml
+++ b/.github/workflows/update-files.yml
@@ -136,7 +136,7 @@ jobs:
           cp paper.tex publish/
           cp README.md publish/
           cp .github/_config.yml publish/
-      - uses: actions/upload-artifact@v4
+      - uses: actions/upload-artifact@v5
         with:
           name: publish
           path: publish/