diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 80c3286c..63c117ff 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -8,7 +8,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: [38, 39, 310]
+        python-version: [39, 310, 311]
 
     steps:
       - uses: actions/checkout@v4
diff --git a/ci/environment-py38.yml b/ci/environment-py311.yml
similarity index 96%
rename from ci/environment-py38.yml
rename to ci/environment-py311.yml
index 3d276036..a2228952 100644
--- a/ci/environment-py38.yml
+++ b/ci/environment-py311.yml
@@ -3,7 +3,7 @@ channels:
   - conda-forge
   - defaults
 dependencies:
-  - python=3.8
+  - python=3.11
   - dask
   - zarr
   - xarray