diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 0e7eb16..fb60c18 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -15,7 +15,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest]
-        python-version: ['3.9', '3.10', '3.11']
+        python-version: ['3.9', '3.12']
         env: [base]
         include:
         - os: macos-latest
@@ -26,23 +26,28 @@ jobs:
           env: win
         - os: ubuntu-latest
           python-version: '3.11'
-          env: no-oe
+          env: minimal
 
     steps:
     - uses: actions/checkout@v4
 
-    - name: Install micromamba
-      uses: mamba-org/setup-micromamba@v2
+    - name: Install uv
+      uses: astral-sh/setup-uv@v3
       with:
-        environment-file: ci/requirements/py-${{ matrix.env }}.yml
-        environment-name: test-env
-        cache-environment: true
-        create-args: >-
-          python=${{ matrix.python-version }}
-          conda
+        version: "latest"
+        enable-cache: true
+
+    - name: Install python
+      run: uv python install ${{ matrix.python-version }}
+
+    - name: Install dependencies
+      run: uv pip install -r ci/requirements/${{ matrix.env }}.txt
+
+    - name: Install cotengra
+      run: uv pip install -e .
 
     - name: Test with pytest
-      run: pytest --cov=cotengra tests/ --cov-report=xml tests
+      run: uv run pytest --cov=cotengra tests/ --cov-report=xml tests
 
     - name: Report to codecov
       uses: codecov/codecov-action@v4
diff --git a/ci/requirements/base.txt b/ci/requirements/base.txt
new file mode 100644
index 0000000..5ad0b3c
--- /dev/null
+++ b/ci/requirements/base.txt
@@ -0,0 +1,15 @@
+autoray
+cmaes>=0.10
+cotengrust
+coverage
+kahypar
+matplotlib
+networkx
+nevergrad
+opt_einsum
+optuna
+pytest
+pytest-cov
+ray
+seaborn
+tqdm
\ No newline at end of file
diff --git a/ci/requirements/mac.txt b/ci/requirements/mac.txt
new file mode 100644
index 0000000..b5edaec
--- /dev/null
+++ b/ci/requirements/mac.txt
@@ -0,0 +1,15 @@
+autoray
+cmaes>=0.10
+cotengrust
+coverage
+# kahypar
+matplotlib
+networkx
+nevergrad
+opt_einsum
+optuna
+pytest
+pytest-cov
+ray
+seaborn
+tqdm
\ No newline at end of file
diff --git a/ci/requirements/minimal.txt b/ci/requirements/minimal.txt
new file mode 100644
index 0000000..11a45b3
--- /dev/null
+++ b/ci/requirements/minimal.txt
@@ -0,0 +1,15 @@
+autoray
+cmaes>=0.10
+# cotengrust
+coverage
+kahypar
+matplotlib
+networkx
+nevergrad
+# opt_einsum
+optuna
+pytest
+pytest-cov
+# ray
+seaborn
+tqdm
\ No newline at end of file
diff --git a/ci/requirements/py-base.yml b/ci/requirements/py-base.yml
deleted file mode 100644
index 3ca229a..0000000
--- a/ci/requirements/py-base.yml
+++ /dev/null
@@ -1,21 +0,0 @@
-channels:
-  - defaults
-  - conda-forge
-dependencies:
-  - autoray
-  - cmaes>=0.10
-  - coverage
-  - matplotlib
-  - networkx
-  - opt_einsum
-  - optuna
-  - pytest
-  - pytest-cov
-  - seaborn
-  - tqdm
-  - pip
-  - pip:
-    - kahypar
-    - nevergrad
-    - ray
-
diff --git a/ci/requirements/py-mac.yml b/ci/requirements/py-mac.yml
deleted file mode 100644
index 24e9829..0000000
--- a/ci/requirements/py-mac.yml
+++ /dev/null
@@ -1,20 +0,0 @@
-channels:
-  - defaults
-  - conda-forge
-dependencies:
-  - autoray
-  - cmaes>=0.10
-  - coverage
-  - matplotlib
-  - networkx
-  - opt_einsum
-  - optuna
-  - pytest
-  - pytest-cov
-  - seaborn
-  - tqdm
-  - pip
-  - pip:
-    # - kahypar
-    - nevergrad
-    - ray
diff --git a/ci/requirements/py-no-oe.yml b/ci/requirements/py-no-oe.yml
deleted file mode 100644
index 589b4bd..0000000
--- a/ci/requirements/py-no-oe.yml
+++ /dev/null
@@ -1,20 +0,0 @@
-channels:
-  - defaults
-  - conda-forge
-dependencies:
-  - autoray
-  - cmaes>=0.10
-  - coverage
-  - matplotlib
-  - networkx
-  - optuna
-  - pytest
-  - pytest-cov
-  - seaborn
-  - tqdm
-  - pip
-  - pip:
-    - kahypar
-    - nevergrad
-    - ray
-
diff --git a/ci/requirements/py-win.yml b/ci/requirements/py-win.yml
deleted file mode 100644
index 278baed..0000000
--- a/ci/requirements/py-win.yml
+++ /dev/null
@@ -1,21 +0,0 @@
-channels:
-  - defaults
-  - conda-forge
-dependencies:
-  - autoray
-  - cmaes>=0.10
-  - coverage
-  - matplotlib
-  - networkx
-  - opt_einsum
-  - optuna
-  - pytest
-  - pytest-cov
-  - seaborn
-  - tqdm
-  - pip
-  - pip:
-    # - kahypar
-    - nevergrad
-    # - ray
-
diff --git a/ci/requirements/win.txt b/ci/requirements/win.txt
new file mode 100644
index 0000000..ab72d27
--- /dev/null
+++ b/ci/requirements/win.txt
@@ -0,0 +1,15 @@
+autoray
+cmaes>=0.10
+cotengrust
+coverage
+# kahypar
+matplotlib
+networkx
+nevergrad
+opt_einsum
+optuna
+pytest
+pytest-cov
+# ray
+seaborn
+tqdm
\ No newline at end of file