diff --git a/.github/workflows/build_client.yml b/.github/workflows/build_client.yml
index 2034820..973bb21 100644
--- a/.github/workflows/build_client.yml
+++ b/.github/workflows/build_client.yml
@@ -61,14 +61,14 @@ jobs:
           cd software
           pyinstaller pyinstaller.spec
       - name: Upload built client
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: client-${{ matrix.name }}
           path: software/dist/*
       - name: Zip up client for release
         run: ${{ matrix.bundle_command }}
       - name: Upload release artifacts
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: release-artifacts
           path: client-${{ matrix.name }}.zip
diff --git a/.github/workflows/build_firmware.yml b/.github/workflows/build_firmware.yml
index 8639bce..8d87fd1 100644
--- a/.github/workflows/build_firmware.yml
+++ b/.github/workflows/build_firmware.yml
@@ -64,7 +64,7 @@ jobs:
         run: |
           docker run --rm -v ${PWD}:/workdir -e CURRENT_DEVICE_TYPE=${{ matrix.device_type }} ghcr.io/${repo,,}-fw-builder@${{ needs.build_fw_builder.outputs.image_hash }} firmware/build.sh
       - name: Upload built binaries
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: ${{ matrix.device_type }}-firmware
           path: firmware/objects/*.hex
@@ -76,17 +76,17 @@ jobs:
           unzip firmware/objects/${{ matrix.device_type }}-dfu-app.zip -d firmware/objects/${{ matrix.device_type }}-dfu-app
           unzip firmware/objects/${{ matrix.device_type }}-dfu-full.zip -d firmware/objects/${{ matrix.device_type }}-dfu-full
       - name: Upload dfu app image
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: ${{ matrix.device_type }}-dfu-app
           path: firmware/objects/${{ matrix.device_type }}-dfu-app/*
       - name: Upload dfu full image
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: ${{ matrix.device_type }}-dfu-full
           path: firmware/objects/${{ matrix.device_type }}-dfu-full/*
       - name: Upload release artifacts
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: release-artifacts
           path: firmware/objects/*.zip