diff --git a/requirements-dev.txt b/requirements-dev.txt
index 4afab8f..982ce40 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -3,7 +3,7 @@ mccabe==0.6.1
 pycodestyle==2.3.1
 pyflakes==1.5.0
 py==1.4.34
-pytest==3.1.2
+pytest==9.0.2
 
 
 -r requirements.txt