diff --git a/.github/workflows/ci-additional.yaml b/.github/workflows/ci-additional.yaml
index f7097185224..c56305a863a 100644
--- a/.github/workflows/ci-additional.yaml
+++ b/.github/workflows/ci-additional.yaml
@@ -41,7 +41,7 @@ jobs:
 
     env:
       CONDA_ENV_FILE: ci/requirements/environment.yml
-      PYTHON_VERSION: "3.10"
+      PYTHON_VERSION: "3.11"
 
     steps:
       - uses: actions/checkout@v3
@@ -89,7 +89,7 @@ jobs:
         shell: bash -l {0}
     env:
       CONDA_ENV_FILE: ci/requirements/environment.yml
-      PYTHON_VERSION: "3.10"
+      PYTHON_VERSION: "3.11"
 
     steps:
       - uses: actions/checkout@v3
@@ -215,7 +215,7 @@ jobs:
           environment-name: xarray-tests
           environment-file: false
           extra-specs: |
-            python=3.10
+            python=3.11
             pyyaml
             conda
             python-dateutil
diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 457520a08e9..b5bbea68148 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -54,10 +54,10 @@ jobs:
             os: ubuntu-latest
           # Latest python version:
           - env: "all-but-dask"
-            python-version: "3.10"
+            python-version: "3.11"
             os: ubuntu-latest
           - env: "flaky"
-            python-version: "3.10"
+            python-version: "3.11"
             os: ubuntu-latest
     steps:
       - uses: actions/checkout@v3
@@ -105,7 +105,7 @@ jobs:
       # We only want to install this on one run, because otherwise we'll have
       # duplicate annotations.
       - name: Install error reporter
-        if: ${{ matrix.os }} == 'ubuntu-latest' and ${{ matrix.python-version }} == '3.10'
+        if: ${{ matrix.os }} == 'ubuntu-latest' and ${{ matrix.python-version }} == '3.11'
         run: |
           python -m pip install pytest-github-actions-annotate-failures
 
diff --git a/.github/workflows/upstream-dev-ci.yaml b/.github/workflows/upstream-dev-ci.yaml
index ff7b633fcff..27d7a1afb2d 100644
--- a/.github/workflows/upstream-dev-ci.yaml
+++ b/.github/workflows/upstream-dev-ci.yaml
@@ -50,7 +50,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ["3.10"]
+        python-version: ["3.11"]
     steps:
       - uses: actions/checkout@v3
         with: