diff --git a/.github/workflows/test-suite.yml b/.github/workflows/test-suite.yml
index e6998391a..9c706087b 100644
--- a/.github/workflows/test-suite.yml
+++ b/.github/workflows/test-suite.yml
@@ -25,6 +25,7 @@ jobs:
         - "3.8"
         - "3.9"
         - "3.10"
+        # - "3.11"
         platform:
         - macos
         - windows
@@ -140,6 +141,7 @@ jobs:
         - "3.8"
         - "3.9"
         - "3.10"
+        # - "3.11"
         platform:
         - windows
         - ubuntu
@@ -154,6 +156,10 @@ jobs:
         with:
           python-version: ${{matrix.python}}
 
+      - name: Inspect environment
+        run: |
+          pip list
+
       - name: Run tests
         run: |
           python -m pytest --cov=lenskit --cov-report=xml --log-file=test.log
@@ -185,6 +191,10 @@ jobs:
           python -m pip install -c min-constraints.txt .[test]
           python -m pip install pytest-cov
 
+      - name: Inspect environment
+        run: |
+          pip list
+
       - name: Run tests
         run: |
           python -m pytest --cov=lenskit --cov-report=xml --log-file test.log
diff --git a/pyproject.toml b/pyproject.toml
index 90e841cf4..e8b92bb49 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -13,6 +13,7 @@ classifiers = [
     "Programming Language :: Python :: 3.8",
     "Programming Language :: Python :: 3.9",
     "Programming Language :: Python :: 3.10",
+    # "Programming Language :: Python :: 3.11",
     "Operating System :: OS Independent",
     "Intended Audience :: Science/Research",
 ]
@@ -24,7 +25,7 @@ dependencies = [
     "pandas >=1.0, ==1.*",
     "numpy >= 1.19",
     "scipy >= 1.3.2",
-    "numba >= 0.51, < 0.57",
+    "numba >= 0.51, < 0.59",
     "cffi >= 1.12.2",
     "psutil >= 5",
     "binpickle >= 0.3.2",