diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 03495fe..94b72f7 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -17,13 +17,13 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        node-version: [16, 18, 20]
+        node-version: [20, 22]
     defaults:
       run:
         working-directory: ./frontend
     steps:
-      - uses: actions/checkout@v3
-      - uses: actions/setup-node@v3
+      - uses: actions/checkout@v4
+      - uses: actions/setup-node@v4
         with:
           node-version: ${{ matrix.node-version }}
           cache: "npm"
@@ -34,7 +34,7 @@ jobs:
       - run: npm run test:unit:ci
       # todo: these e2e tests are not generating coverage reports on CI:
       - run: DEBUG=cypress:* npm run test:e2e:ci
-      - uses: codecov/codecov-action@v3
+      - uses: codecov/codecov-action@v4
         with:
           token: ${{ secrets.CODECOV_TOKEN }}
           files: ./frontend/coverage/coverage-final.json
@@ -46,13 +46,13 @@ jobs:
     name: "Backend :: Python ${{ matrix.python-version }}"
     strategy:
       matrix:
-        python-version: ["3.8", "3.9", "3.10", "3.11"]
+        python-version: ["3.10", "3.11", "3.12"]
     defaults:
       run:
         working-directory: ./backend
     steps:
-      - uses: actions/checkout@v3
-      - uses: actions/setup-python@v4
+      - uses: actions/checkout@v4
+      - uses: actions/setup-python@v5
         with:
           python-version: ${{ matrix.python-version }}
       - run: pip install -e .[tests]
@@ -61,7 +61,7 @@ jobs:
           openssl req -x509 -newkey rsa:2048 -keyout key.pem -out cert.pem -sha256 -days 365 -nodes -subj '/CN=localhost'
           sample_flow_server --help
           timeout 5 sample_flow_server || [ "$?" -eq 124 ]
-      - uses: codecov/codecov-action@v3
+      - uses: codecov/codecov-action@v4
         with:
           token: ${{ secrets.CODECOV_TOKEN }}
           files: ./backend/coverage.xml
@@ -72,9 +72,9 @@ jobs:
     runs-on: ubuntu-latest
     name: "Docker"
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - run: echo "VITE_REST_API_LOCATION=https://circuitseq.iwr.uni-heidelberg.de/api" > frontend/.env
-      - run: docker-compose build
+      - run: docker compose build
       - uses: docker/login-action@v2
         with:
           registry: ghcr.io
@@ -83,15 +83,15 @@ jobs:
         if: github.event_name == 'push' && github.ref == 'refs/heads/main'
       - run: |
           echo $SAMPLE_FLOW_DOCKER_IMAGE_TAG
-          docker-compose build
-          docker-compose push
+          docker compose build
+          docker compose push
         if: github.event_name == 'push' && github.ref == 'refs/heads/main'
         env:
           SAMPLE_FLOW_DOCKER_IMAGE_TAG: ${{ github.sha }}
       - run: |
           echo $SAMPLE_FLOW_DOCKER_IMAGE_TAG
-          docker-compose build
-          docker-compose push
+          docker compose build
+          docker compose push
         if: github.event_name == 'push' && github.ref == 'refs/heads/main'
         env:
           SAMPLE_FLOW_DOCKER_IMAGE_TAG: "latest"
diff --git a/frontend/src/utils/api-client.ts b/frontend/src/utils/api-client.ts
index 4fa3911..383c5d8 100644
--- a/frontend/src/utils/api-client.ts
+++ b/frontend/src/utils/api-client.ts
@@ -23,9 +23,6 @@ function download_file_from_endpoint(
 ) {
   apiClient
     .post(endpoint, json, {
-      headers: {
-        "Content-Type": "multipart/form-data",
-      },
       responseType: "blob",
     })
     .then((response) => {