diff --git a/test-requirements.txt b/test-requirements.txt
index 8238bb8..e5ed72d 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -1,4 +1,4 @@
-pytest==3.2.3
+pytest==9.0.3
 flake8==3.5.0
 numpy
 pandas