diff --git a/requirements.txt b/requirements.txt
index c87cd91..3bbca12 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -9,5 +9,5 @@ parsimonious==0.8.1
 pytest==4.3.1
 pytest-cov==2.6.1
 pytest-flake8==1.0.4
-pytest-xdist==1.27.0
+pytest-xdist==1.28.0
 pytest-sugar==0.9.2