diff --git a/.github/workflows/conda_ci.yml b/.github/workflows/conda_ci.yml
index b53a8d1..3a84529 100644
--- a/.github/workflows/conda_ci.yml
+++ b/.github/workflows/conda_ci.yml
@@ -12,7 +12,7 @@ permissions:
 jobs:
   tests:
     name: "Conda"
-    runs-on: ubuntu-18.04
+    runs-on: ubuntu-22.04
     defaults:
       run:
         shell: bash -l {0}
@@ -30,7 +30,9 @@ jobs:
         uses: conda-incubator/setup-miniconda@v2
         with:
           activate-environment: env
-          conda-build-version: 3.21.0
+          conda-build-version: 3.23.3
+          python-version: "3.8"
+          miniforge-variant: Mambaforge
 
       - name: Install dependencies 🔧
         run: |
diff --git a/tox.ini b/tox.ini
index 7ac630d..b3844d5 100644
--- a/tox.ini
+++ b/tox.ini
@@ -3,6 +3,7 @@
 #     * tox
 #     * envlists
 #     * testenv
+#     * testenv:py312-dev
 #     * testenv:docs
 #     * testenv:build
 #     * testenv:lint