diff --git a/.github/workflows/build.yaml b/.github/workflows/build.yaml
index 0c4fd1b09f..b112267c33 100644
--- a/.github/workflows/build.yaml
+++ b/.github/workflows/build.yaml
@@ -72,7 +72,7 @@ jobs:
         shell: bash -l {0}
         run: |
           mamba install -y -q \
-            pytest pytest-xdist pytest-openfiles pytest-cov
+            pytest pytest-xdist pytest-cov
 
       - name: List installed packages
         shell: bash -l {0}
@@ -90,7 +90,7 @@ jobs:
         env:
           SQLALCHEMY_WARN_20: 1
         run: |
-          pytest -r a -v -n 3 --open-files --cov=lsst.daf.butler --cov=tests --cov-report=xml --cov-report=term --cov-branch
+          pytest -r a -v -n 3 --cov=lsst.daf.butler --cov=tests --cov-report=xml --cov-report=term --cov-branch
       - name: Upload coverage to codecov
         uses: codecov/codecov-action@v4
         with:
diff --git a/pyproject.toml b/pyproject.toml
index d165854015..8349ce14ef 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -53,7 +53,6 @@ server = [
 ]
 test = [
     "pytest >= 3.2",
-    "pytest-openfiles >= 0.5.0",
     "numpy >= 1.17",
     "matplotlib >= 3.0.3",
     "pandas >= 1.0",