diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index df9f35b..05c0d37 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -71,5 +71,5 @@ jobs:
         uses: codecov/codecov-action@v6
         with:
           flags: unittests
-          file: ./coverage.xml
+          files: ./coverage.xml
           env_vars: OS,PYTHON_VERSION,UNSTABLE
diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 65149ad..f9c717a 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -7,7 +7,7 @@ repos:
     - id: flake8
       additional_dependencies: [flake8-docstrings, flake8-debugger, flake8-bugbear]
 -   repo: https://github.com/pycqa/isort
-    rev: 8.0.1
+    rev: 9.0.0a3
     hooks:
       - id: isort
         language_version: python3
diff --git a/continuous_integration/environment.yaml b/continuous_integration/environment.yaml
index b205c61..23eb7fd 100644
--- a/continuous_integration/environment.yaml
+++ b/continuous_integration/environment.yaml
@@ -6,7 +6,7 @@ dependencies:
   - dask
   - distributed
   - toolz
-  - Cython
+  - cython
   - sphinx
   - matplotlib
   - scipy