diff --git a/.github/workflows/build.yaml b/.github/workflows/build.yaml
index e69734ebf..307c90047 100644
--- a/.github/workflows/build.yaml
+++ b/.github/workflows/build.yaml
@@ -11,9 +11,6 @@ on:
   schedule:
     - cron: '0 15 * * SUN'
 
-env:
-  PYTHON_VERSION: "3.11"
-
 defaults:
   run:
     shell: bash -e {0}
diff --git a/.github/workflows/docs.yaml b/.github/workflows/docs.yaml
index 5ca197243..2ad3e2207 100644
--- a/.github/workflows/docs.yaml
+++ b/.github/workflows/docs.yaml
@@ -27,9 +27,6 @@ defaults:
   run:
     shell: bash -e {0}
 
-env:
-  PYTHON_VERSION: "3.11"
-
 jobs:
   pixi_lock:
     name: Pixi lock
@@ -89,7 +86,7 @@ jobs:
           fetch-depth: 0
       - uses: actions/setup-python@v6
         with:
-          python-version: ${{ env.PYTHON_VERSION }}
+          python-version: '3.13'
       - name: install
         run: pip install -v --prefer-binary -e ."[doc, examples, geo]"
       - name: pip list
diff --git a/pixi.toml b/pixi.toml
index 2d59870fa..357ad7112 100644
--- a/pixi.toml
+++ b/pixi.toml
@@ -46,11 +46,11 @@ features = ["py314", "required", "test-core"]
 no-default-feature = true
 
 [environments.docs]
-features = ["py311", "required", "doc", "example", "geo", "graphviz"]
+features = ["py313", "required", "doc", "example", "geo", "graphviz"]
 no-default-feature = true
 
 [environments.build]
-features = ["py311", "required", "build"]
+features = ["py313", "required", "build"]
 no-default-feature = true
 
 [environments.lint]