diff --git a/.github/workflows/test-readme.sh b/.github/workflows/test-readme.sh
new file mode 100644
index 0000000..aee8fbf
--- /dev/null
+++ b/.github/workflows/test-readme.sh
@@ -0,0 +1,24 @@
+set -e
+
+# Run the steps described in the quetz README.md for uploading and installing a sample package
+
+git clone https://github.com/mamba-org/quetz.git
+
+pip install -e ./quetz-client
+micromamba install quetz
+micromamba install -y sqlalchemy=1.4.46
+
+quetz run test_quetz --copy-conf ./quetz/dev_config.toml --dev --reload > quetz.log &
+sleep 10
+export QUETZ_API_KEY=$(sed -n 's/.*key created for user.*: \(.*\)/\1/p' quetz.log)
+# echo "PRINTING API KEY"
+# echo $QUETZ_API_KEY
+export QUETZ_SERVER_URL=http://localhost:8000
+
+bash ./quetz/download-test-package.sh
+
+quetz-client post_file_to_channel channel0 xtensor/linux-64/xtensor-0.16.1-0.tar.bz2 xtensor/osx-64/xtensor-0.16.1-0.tar.bz2
+
+sleep 2
+
+micromamba install --override-channels --strict-channel-priority -c http://localhost:8000/get/channel0 -c conda-forge xtensor
diff --git a/.github/workflows/test-readme.yml b/.github/workflows/test-readme.yml
new file mode 100644
index 0000000..f2eec10
--- /dev/null
+++ b/.github/workflows/test-readme.yml
@@ -0,0 +1,27 @@
+name: Run quetz README
+
+on:
+  workflow_dispatch:
+
+defaults:
+  run:
+    shell: bash -l {0}
+
+jobs:
+  test-readme:
+    name: Run quetz README
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3.3.0
+        with:
+          path: quetz-client
+
+      - name: Install mamba & create environment
+        uses: mamba-org/provision-with-micromamba@v15
+        with:
+          cache-env: true
+          environment-file: quetz-client/environment.yml
+
+      - name: Run README script
+        run: |
+          bash ./quetz-client/.github/workflows/test-readme.sh
diff --git a/README.md b/README.md
index 65dee4f..4d090d8 100644
--- a/README.md
+++ b/README.md
@@ -1,9 +1,17 @@
 # quetz-client
 
-A Python client to interact with a Quetz server.
+A Python client to interact with a Quetz server. Compatible with `quetz>=0.4.0`.
 
 ## Installation
 
+### From conda-forge
+
+```bash
+mamba install quetz-client
+```
+
+### From this repo
+
 You can install the package in development mode using:
 
 ```bash
diff --git a/environment.yml b/environment.yml
index 54171f8..c902bbf 100644
--- a/environment.yml
+++ b/environment.yml
@@ -14,7 +14,6 @@ dependencies:
   - sphinx
   - sphinxcontrib-apidoc
   - sphinx_rtd_theme
-  - quetz >=0.4.0
   - pytest-mock
   - requests-mock
   - httpx
diff --git a/src/quetz_client/client.py b/src/quetz_client/client.py
index b0106fc..7b6a815 100644
--- a/src/quetz_client/client.py
+++ b/src/quetz_client/client.py
@@ -1,8 +1,7 @@
-import hashlib
 from dataclasses import dataclass
 from itertools import count
 from pathlib import Path
-from typing import Dict, Iterator, List, Mapping, Optional, Union
+from typing import BinaryIO, Dict, Iterator, List, Mapping, Optional, Tuple, Union
 
 import requests
 
@@ -164,18 +163,12 @@ def yield_packages(
             yield Package(**user_json)
 
     def post_file_to_channel(self, channel: str, file: Path, force: bool = False):
-        url = f"{self.url}/api/channels/{channel}/upload/{file.name}"
-        body = open(file, "rb")
-
-        upload_hash = hashlib.sha256(body.read()).hexdigest()
-
-        params: Dict[str, Union[str, int]] = {
-            "force": force,
-            "sha256": upload_hash,
-        }
+        url = f"{self.url}/api/channels/{channel}/files/"
+        files: List[Tuple[str, Union[BinaryIO, Tuple]]] = [("files", open(file, "rb"))]
+        if force:
+            files.append(("force", (None, "true")))
         response = self.session.post(
             url=url,
-            data=body,
-            params=params,
+            files=files,  # type: ignore
         )
         response.raise_for_status()
diff --git a/tests/test_client.py b/tests/test_client.py
index 32e2f3c..c3ab0b0 100644
--- a/tests/test_client.py
+++ b/tests/test_client.py
@@ -1,5 +1,3 @@
-import re
-
 import pytest
 
 from quetz_client.client import Channel, ChannelMember, QuetzClient
@@ -183,10 +181,8 @@ def test_post_file_to_channel(
 ):
     channel = "a"
 
-    url_matcher = re.compile(
-        f"{test_url}/api/channels/{channel}/upload/\\w*\\?force=False&sha256=\\w*"
-    )
-    requests_mock.register_uri("POST", url_matcher, json=None)
+    url = f"{test_url}/api/channels/{channel}/files/"
+    requests_mock.post(url, json=None)
 
     requests_mock.register_uri(
         "GET",