Updated test packges version (#6665)

auvipy · tomchristie · commit a91e6a0e693f · 2019-05-13T09:21:27.000+01:00
diff --git a/requirements/requirements-testing.txt b/requirements/requirements-testing.txt
@@ -1,4 +1,4 @@
 # Pytest for running the tests.
-pytest==4.3.0
-pytest-django==3.4.8
-pytest-cov==2.6.1
+pytest>=4.5.0,<4.6
+pytest-django>=3.4.8,<3.5
+pytest-cov>=2.7.1
