diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
index 7f30b85..085c84c 100644
--- a/.github/workflows/publish.yml
+++ b/.github/workflows/publish.yml
@@ -14,7 +14,7 @@ jobs:
       run:
         working-directory: rormula
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Build sdist
         uses: PyO3/maturin-action@v1
         with:
@@ -22,7 +22,7 @@ jobs:
           working-directory: rormula
           args: --out dist
       - name: Upload sdist
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: wheels
           path: rormula/dist
@@ -37,8 +37,8 @@ jobs:
       matrix:
         target: [x86_64, x86, aarch64]
     steps:
-      - uses: actions/checkout@v3
-      - uses: actions/setup-python@v4
+      - uses: actions/checkout@v4
+      - uses: actions/setup-python@v5
         with:
           python-version: '3.10'
       - name: Build wheels
@@ -50,7 +50,7 @@ jobs:
           sccache: 'true'
           manylinux: auto
       - name: Upload wheels
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: wheels
           path: rormula/dist
@@ -65,8 +65,8 @@ jobs:
       matrix:
         target: [x64, x86]
     steps:
-      - uses: actions/checkout@v3
-      - uses: actions/setup-python@v4
+      - uses: actions/checkout@v4
+      - uses: actions/setup-python@v5
         with:
           python-version: '3.10'
           architecture: ${{ matrix.target }}
@@ -78,7 +78,7 @@ jobs:
           args: --release --out dist --find-interpreter
           sccache: 'true'
       - name: Upload wheels
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: wheels
           path: rormula/dist
@@ -93,8 +93,8 @@ jobs:
       matrix:
         target: [x86_64, aarch64]
     steps:
-      - uses: actions/checkout@v3
-      - uses: actions/setup-python@v4
+      - uses: actions/checkout@v4
+      - uses: actions/setup-python@v5
         with:
           python-version: '3.10'
       - name: Build wheels
@@ -105,7 +105,7 @@ jobs:
           args: --release --out dist --find-interpreter
           sccache: 'true'
       - name: Upload wheels
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: wheels
           path: rormula/dist
@@ -119,7 +119,7 @@ jobs:
         working-directory: rormula
     needs: [linux, windows, macos, sdist]
     steps:
-      - uses: actions/download-artifact@v3
+      - uses: actions/download-artifact@v4
         with:
           name: wheels
       - name: Publish to PyPI
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 5ff8bdb..320cdc3 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -8,7 +8,7 @@ jobs:
   test-rust:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v4
     - name: Test
       run: cargo test --verbose
     - name: Clippy
@@ -21,9 +21,9 @@ jobs:
       run:
         working-directory: rormula
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v4
     - name: Set up Python 3.10
-      uses: actions/setup-python@v2
+      uses: actions/setup-python@v5
       with:
         python-version: "3.10"
     - name: Run CI
diff --git a/rormula/test/test_wilkinson.py b/rormula/test/test_wilkinson.py
index 1fdfe1b..da4a422 100644
--- a/rormula/test/test_wilkinson.py
+++ b/rormula/test/test_wilkinson.py
@@ -109,12 +109,15 @@ def timing_and_test(data, formula_str):
     # keeping data numerical and categorical data separated is faster
     separated_data = ror.separate_num_cat(data)
     M_r = timing(partial(rormula.eval, data=separated_data), "Rormula")
+    M_r_asdf = timing(partial(rormula.eval_asdf, data=data), "Rormula asdf")
 
     assert M_r is not None
+    assert M_r_asdf is not None
     names, M_r = M_r
     if len(names) == 0:
         return
     M_r = pd.DataFrame(data=M_r, columns=names)
+    assert np.allclose(M_r, M_r_asdf)
     formula = formulaic.Formula(formula_str.replace("^", "**"))
     M_f = timing(partial(formula.get_model_matrix, data=data), "Formulaic")