diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 0c4988f..9d499e8 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -52,7 +52,7 @@ jobs:
         run: uv run coverage run -m pytest
 
       - name: Upload coverage data
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v6
         with:
           name: coverage-data-${{ matrix.python-version }}
           path: .coverage.*
@@ -95,7 +95,7 @@ jobs:
           echo '```' >> $GITHUB_STEP_SUMMARY
 
       - name: Upload HTML report
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v6
         with:
           name: html-report
           path: reports/coverage/html