diff --git a/.github/workflows/test_pinned_deps.yml b/.github/workflows/test_pinned_deps.yml
index 95a0cd6..d81fa1e 100644
--- a/.github/workflows/test_pinned_deps.yml
+++ b/.github/workflows/test_pinned_deps.yml
@@ -34,7 +34,9 @@ jobs:
           environment-file: environment.yml
 
       - name: Install package
-        run: pip install .
+        # Note: editable install for the coverage step to pick up source
+        # correctly. (coverage run --source=src/paste3 -m pytest)
+        run: pip install -e .
 
       - name: Pre-commit checks
         run: pre-commit run --all-files
diff --git a/.github/workflows/test_unpinned_deps.yml b/.github/workflows/test_unpinned_deps.yml
index 9d10cec..e88b006 100644
--- a/.github/workflows/test_unpinned_deps.yml
+++ b/.github/workflows/test_unpinned_deps.yml
@@ -3,10 +3,8 @@ name: Test Unpinned Dependencies
 on:
   push:
     branches: [ main ]
-  pull_request_target:
-    types: [ opened, edited]
+  pull_request:
     branches: [ main ]
-    paths: ['pyproject.toml', 'requirements.txt']
 
 jobs:
   build_wheels:
diff --git a/pyproject.toml b/pyproject.toml
index 4b87620..dcaf5e1 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -17,14 +17,14 @@ classifiers = [
 ]
 
 dependencies = [
-    "anndata==0.10.8",
-    "scanpy==1.10.2",
+    "anndata",
+    "scanpy",
     "POT",
-    "numpy",
+    "numpy<2",
     "scipy",
-    "scikit-learn==1.5.1",
-    "IPython>=7.18.1",
-    "statsmodels==0.14.2"
+    "scikit-learn",
+    "IPython",
+    "statsmodels"
 ]
 dynamic = ["version"]
 
diff --git a/tests/test_paste2.py b/tests/test_paste2.py
index cc354ea..07e9936 100644
--- a/tests/test_paste2.py
+++ b/tests/test_paste2.py
@@ -58,7 +58,7 @@ def test_partial_pairwise_align_given_cost_matrix(slices):
         pd.read_csv(output_dir / "align_given_cost_matrix_pairwise_info.csv"),
         rtol=1e-05,
     )
-    assert log == expected_log
+    assert log == pytest.approx(expected_log)
 
 
 @pytest.mark.skip