diff --git a/dev_requirements.txt b/dev_requirements.txt
index b00073a..3c262cf 100644
--- a/dev_requirements.txt
+++ b/dev_requirements.txt
@@ -1,7 +1,7 @@
 -r requirements.txt
 
 mock==3.0.5;python_version<"3.3"
-pytest==5.3.1;python_version>="3.5"
+pytest==9.0.3;python_version>="3.5"
 pytest==4.6.6;python_version<"3.5"
 pytest-cov==2.8.1
 Sphinx==2.2.2;python_version>="3.5"