1 files changed, 3 insertions, 2 deletions

diff --git a/tox.ini b/tox.ini
index c069c59..27faf5b 100644
--- a/tox.ini
+++ b/tox.ini
@@ -3,8 +3,9 @@ envlist = py27, pypy, py34, py35, py36, py37, pypy3, py27-cdecimal
 
 [testenv]
 deps =
-    pytest==4.3.1
-    pytest-cov==2.6.1
+    pytest==4.3.1;python_version<"3.5"
+    pytest==6.1.2;python_version>="3.5"
+    pytest-cov
     cdecimal: m3-cdecimal
     freezegun==0.3.12
     backports.zoneinfo;python_version>"3.6" and python_version<"3.9"