diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index b2b364f..918bc77 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -57,8 +57,13 @@ jobs:
           python -m pip install .[dev]
           python -m pip install coverage
       - name: Run Tests
-        run: |
-          coverage run --source=. --omit=py2opsin/__init__.py,setup.py,test/* -m unittest discover
+        uses: nick-fields/retry@v3
+        with:
+          max_attempts: 3
+          timeout_minutes: 15
+          shell: bash
+          command: |
+            micromamba run -n temp coverage run --source=. --omit=py2opsin/__init__.py,setup.py,test/* -m unittest discover
       - name: Show Coverage
         run: |
           coverage report -m
diff --git a/test/test_performance.py b/test/test_performance.py
index e75d596..dc77e01 100644
--- a/test/test_performance.py
+++ b/test/test_performance.py
@@ -15,10 +15,6 @@ class Test_py2opsin_performance(unittest.TestCase):
 
     @classmethod
     def setUpClass(self):
-        self.jar_path = os.path.join(
-            os.getcwd(),
-            "opsin-cli-2.7.0-jar-with-dependencies.jar",
-        )
         # list of molecules taken from IUPAC Dissociation Constants dataset
         # https://zenodo.org/record/7236453
         self.compound_list = [