1 files changed, 9 insertions, 1 deletions

diff --git a/setup.cfg b/setup.cfg
index 07697a94..221e1230 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -14,7 +14,15 @@ filterwarnings =
     ignore:the imp module is deprecated in favour of importlib:DeprecationWarning
 
 # xfail tests that pass should fail the test suite
-xfail_strict=true
+xfail_strict = true
+
+balanced_clumps =
+    ; Because of expensive session-scoped fixture:
+    VirtualenvTest
+    ; Because of shared-file manipulations (~/tests/actual/testing):
+    CompareTest
+    ; No idea why this one fails if run on separate workers:
+    GetZipBytesTest
 
 [pep8]
 # E265 block comment should start with '# '