diff --git a/tests/fileformats/top/test_amber03star.py b/tests/fileformats/top/test_amber03star.py
index 26020a6f..254c62fe 100644
--- a/tests/fileformats/top/test_amber03star.py
+++ b/tests/fileformats/top/test_amber03star.py
@@ -31,8 +31,9 @@ class TestAmber03star(TopologyTest):
         "ZN",
     ]
 
-    @pytest.mark.xfail(gromacs.release().startswith(("2022", "2023")),
-                       reason="issue #236 https://github.com/Becksteinlab/GromacsWrapper/issues/236")
+    @pytest.mark.xfail(
+        gromacs.release().startswith(("2022", "2023")),
+        reason="issue #236 https://github.com/Becksteinlab/GromacsWrapper/issues/236",
+    )
     def test_mdrun(self, tmpdir, low_performance):
-            super(TestAmber03star, self).test_mdrun(tmpdir, low_performance)
- 
+        super(TestAmber03star, self).test_mdrun(tmpdir, low_performance)
diff --git a/tests/fileformats/top/test_amber03w.py b/tests/fileformats/top/test_amber03w.py
index 964bdfeb..3581cc96 100644
--- a/tests/fileformats/top/test_amber03w.py
+++ b/tests/fileformats/top/test_amber03w.py
@@ -31,8 +31,9 @@ class TestAmber03w(TopologyTest):
         "ZN",
     ]
 
-    @pytest.mark.xfail(gromacs.release().startswith(("2022", "2023")),
-                       reason="issue #236 https://github.com/Becksteinlab/GromacsWrapper/issues/236")
+    @pytest.mark.xfail(
+        gromacs.release().startswith(("2022", "2023")),
+        reason="issue #236 https://github.com/Becksteinlab/GromacsWrapper/issues/236",
+    )
     def test_mdrun(self, tmpdir, low_performance):
-            super(TestAmber03w, self).test_mdrun(tmpdir, low_performance)
-
+        super(TestAmber03w, self).test_mdrun(tmpdir, low_performance)
diff --git a/tests/fileformats/top/top.py b/tests/fileformats/top/top.py
index 2b128912..a447ec57 100644
--- a/tests/fileformats/top/top.py
+++ b/tests/fileformats/top/top.py
@@ -12,10 +12,10 @@
 from numpy.testing import assert_array_equal
 
 try:
-        from pandas.testing import assert_frame_equal
+    from pandas.testing import assert_frame_equal
 except ImportError:
-        # old versions of pandas
-        from pandas.util.testing import assert_frame_equal
+    # old versions of pandas
+    from pandas.util.testing import assert_frame_equal
 
 import pytest