setup.py: Pinning coverage at 4.4.0 instead of 4.2

Our problem is with 4.4.2; and 4.2 lacks some features
and fails to collect all of the coverage from sub processes,
causing our reports to drop by 10%.

1 files changed, 1 insertions, 1 deletions

diff --git a/setup.py b/setup.py
index 69a78a1d3..795e8f0cd 100755
--- a/setup.py
+++ b/setup.py
@@ -177,7 +177,7 @@ setup(name='BuildStream',
       tests_require=['pep8',
                      # Pin coverage to 4.2 for now, we're experiencing
                      # random crashes with 4.4.2
-                     'coverage == 4.2',
+                     'coverage == 4.4.0',
                      'pytest-datafiles',
                      'pytest-env',
                      'pytest-pep8',