Update deps.

Author: ionelmc

tox.ini

@@ -5,7 +5,7 @@ envlist =
     check
     py{27,35,36,37,py,py3}-pytest46-xdist27-coverage{45,52}
     py{36,37,38,py3}-pytest{46,54}-xdist33-coverage{45,52}
-    py{36,37,38,py3}-pytest{60}-xdist33-coverage{52}
+    py{36,37,38,py3}-pytest{60}-xdistd34-coverage{52}
     docs
 
 [testenv]
@@ -17,13 +17,15 @@ setenv =
     pytest46:  _DEP_PYTEST=pytest==4.6.10
     pytest53:  _DEP_PYTEST=pytest==5.3.2
     pytest54:  _DEP_PYTEST=pytest==5.4.3
-    pytest60:  _DEP_PYTEST=pytest==6.0.0rc1
+    pytest60:  _DEP_PYTEST=pytest==6.0.1
 
     xdist27: _DEP_PYTESTXDIST=pytest-xdist==1.27.0
     xdist29: _DEP_PYTESTXDIST=pytest-xdist==1.29.0
     xdist31: _DEP_PYTESTXDIST=pytest-xdist==1.31.0
     xdist32: _DEP_PYTESTXDIST=pytest-xdist==1.32.0
     xdist33: _DEP_PYTESTXDIST=pytest-xdist==1.33.0
+    xdist34: _DEP_PYTESTXDIST=pytest-xdist==1.34.0
+    xdistdev: _DEP_PYTESTXDIST=git+https://github.com/pytest-dev/pytest-xdist.git#egg=pytest-xdist
 
     coverage45: _DEP_COVERAGE=coverage==4.5.4
     coverage50: _DEP_COVERAGE=coverage==5.0.4