diff --git a/.github/workflows/primer_run_main.yaml b/.github/workflows/primer_run_main.yaml
index b90e0549bc..e56ed71075 100644
--- a/.github/workflows/primer_run_main.yaml
+++ b/.github/workflows/primer_run_main.yaml
@@ -102,7 +102,7 @@ jobs:
             ${{ runner.os }}-${{ matrix.python-version }}-${{
             steps.commitstring.outputs.commitstring }}-primer
       - name: Upload commit string
-        uses: actions/upload-artifact@v5.0.0
+        uses: actions/upload-artifact@v6.0.0
         if: matrix.batchIdx == 0
         with:
           name: primer_commitstring_${{ matrix.python-version }}
@@ -123,7 +123,7 @@ jobs:
           then echo "::warning ::$WARNINGS"
           fi
       - name: Upload output
-        uses: actions/upload-artifact@v5.0.0
+        uses: actions/upload-artifact@v6.0.0
         with:
           name:
             primer_output_main_${{ matrix.python-version }}_batch${{ matrix.batchIdx }}
diff --git a/.github/workflows/primer_run_pr.yaml b/.github/workflows/primer_run_pr.yaml
index e79a5799c8..b2ee3712c6 100644
--- a/.github/workflows/primer_run_pr.yaml
+++ b/.github/workflows/primer_run_pr.yaml
@@ -197,7 +197,7 @@ jobs:
           then echo "::warning ::$WARNINGS"
           fi
       - name: Upload output of PR
-        uses: actions/upload-artifact@v5.0.0
+        uses: actions/upload-artifact@v6.0.0
         with:
           name:
             primer_output_pr_${{ matrix.python-version }}_batch${{ matrix.batchIdx }}
@@ -205,7 +205,7 @@ jobs:
             tests/.pylint_primer_tests/output_${{ matrix.python-version }}_pr_batch${{
             matrix.batchIdx }}.txt
       - name: Upload output of 'main'
-        uses: actions/upload-artifact@v5.0.0
+        uses: actions/upload-artifact@v6.0.0
         with:
           name:
             primer_output_main_${{ matrix.python-version }}_batch${{ matrix.batchIdx }}
@@ -219,7 +219,7 @@ jobs:
         if:
           startsWith(steps.python.outputs.python-version, '3.10') && matrix.batchIdx ==
           0
-        uses: actions/upload-artifact@v5.0.0
+        uses: actions/upload-artifact@v6.0.0
         with:
           name: pr_number
           path: pr_number.txt
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 691f99db31..fc07910ea5 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -34,7 +34,7 @@ jobs:
         run: |
           python -m build
       - name: Upload release assets
-        uses: actions/upload-artifact@v5.0.0
+        uses: actions/upload-artifact@v6.0.0
         with:
           name: release-assets
           path: dist/
diff --git a/.github/workflows/tests.yaml b/.github/workflows/tests.yaml
index 79f56e64ee..067e207c1e 100644
--- a/.github/workflows/tests.yaml
+++ b/.github/workflows/tests.yaml
@@ -91,7 +91,7 @@ jobs:
           python -m pytest -vv --minimal-messages-config tests/test_functional.py --benchmark-disable
       - name: Upload coverage artifact
         if: runner.os == 'Linux'
-        uses: actions/upload-artifact@v5.0.0
+        uses: actions/upload-artifact@v6.0.0
         with:
           name: coverage-${{ matrix.python-version }}
           include-hidden-files: true
@@ -162,7 +162,7 @@ jobs:
         run: >-
           echo "datetime="$(date "+%Y%m%d_%H%M") >> $GITHUB_OUTPUT
       - name: Upload benchmark artifact
-        uses: actions/upload-artifact@v5.0.0
+        uses: actions/upload-artifact@v6.0.0
         with:
           name:
             benchmark-${{ runner.os }}-${{ matrix.python-version }}_${{