diff --git a/Project4/requirements.txt b/Project4/requirements.txt
index d6fd2ec..c8e671b 100644
--- a/Project4/requirements.txt
+++ b/Project4/requirements.txt
@@ -1,5 +1,5 @@
 matplotlib==3.1.1
 numba==0.45.1
-pytest==5.0.1
+pytest==9.0.3
 numpy==1.16.4
 pandas==0.25.1