diff --git a/.github/workflows/benchmark.yml b/.github/workflows/benchmark.yml
index 6cdaa2ff..d990745d 100644
--- a/.github/workflows/benchmark.yml
+++ b/.github/workflows/benchmark.yml
@@ -75,7 +75,7 @@ jobs:
     - name: Create plots
       run: ./tests/benchmark/plot.py
 
-    - uses: actions/upload-artifact@v3
+    - uses: actions/upload-artifact@v4
       with:
         path: |
           tests/benchmark/results/benchmark.dat
diff --git a/.github/workflows/conformance.yml b/.github/workflows/conformance.yml
index b6d3d800..09927b86 100644
--- a/.github/workflows/conformance.yml
+++ b/.github/workflows/conformance.yml
@@ -69,7 +69,7 @@ jobs:
         run: docker compose run conformance_test
 
       - name: Archive production artifacts
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: emailable-report
           path: |