diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index c66a432..f219a60 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -10,13 +10,13 @@ jobs:
       - name: Checkout source
         uses: actions/checkout@v2
 
-      - name: Set up Python 3.10
+      - name: Set up Python 3.13
         uses: actions/setup-python@v5
         with:
-          python-version: "3.10"
+          python-version: "3.13"
 
       - name: Install pypa/build
-        run: python -m pip install build wheel pyyaml
+        run: python -m pip install setuptools build wheel pyyaml
 
       - name: Build distributions
         shell: bash -l {0}
@@ -24,7 +24,7 @@ jobs:
 
       - name: Publish package to PyPI
         if: github.repository == 'dask/dask-mpi' && github.event_name == 'push' && startsWith(github.ref, 'refs/tags')
-        uses: pypa/gh-action-pypi-publish@master
+        uses: pypa/gh-action-pypi-publish@release/v1
         with:
           user: __token__
           password: ${{ secrets.PYPI_API_TOKEN }}
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 23ada72..c772384 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -19,7 +19,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python: ['3.7', '3.8']
+        python: ['3.10', '3.11', '3.12', '3.13']
         mpi: ['mpich', 'openmpi']
     env:
       PYTHON: ${{ matrix.python }}
diff --git a/ci/env-mpich.yml b/ci/env-mpich.yml
index 4f2c2fb..b828f03 100644
--- a/ci/env-mpich.yml
+++ b/ci/env-mpich.yml
@@ -1,14 +1,13 @@
 name: dask-mpi-dev
 channels:
   - conda-forge
-  - defaults
+  - nodefaults
 dependencies:
   - dask>=2.19
   - distributed>=2.19
   - mpich
   - mpi4py>=3.0.3
   - pytest
-  - pytest-icdiff
   - pytest-cov
   - coverage
   - requests
diff --git a/ci/env-openmpi.yml b/ci/env-openmpi.yml
index 8301973..e2cc32d 100644
--- a/ci/env-openmpi.yml
+++ b/ci/env-openmpi.yml
@@ -1,14 +1,13 @@
 name: dask-mpi-dev
 channels:
   - conda-forge
-  - defaults
+  - nodefaults
 dependencies:
   - dask>=2.19
   - distributed>=2.19
   - openmpi
   - mpi4py>=3.0.3
   - pytest
-  - pytest-icdiff
   - pytest-cov
   - coverage
   - requests
diff --git a/docs/environment.yml b/docs/environment.yml
index 39caad7..40c4233 100644
--- a/docs/environment.yml
+++ b/docs/environment.yml
@@ -3,7 +3,7 @@ channels:
   - conda-forge
   - nodefaults
 dependencies:
-  - python<3.12
+  - python<3.14
   - dask>=2.19
   - distributed>=2.19
   - mpich
diff --git a/setup.py b/setup.py
index d197b71..ab20d2e 100644
--- a/setup.py
+++ b/setup.py
@@ -47,7 +47,7 @@ def environment_dependencies(obj, dependencies=None):
     license="BSD 3-Clause",
     include_package_data=True,
     install_requires=install_requires,
-    python_requires=">=3.6,<3.12",
+    python_requires=">=3.10",
     packages=["dask_mpi"],
     long_description=long_description,
     entry_points="""