diff --git a/tests/requirements.txt b/tests/requirements.txt
index 5bc54036..f1245921 100644
--- a/tests/requirements.txt
+++ b/tests/requirements.txt
@@ -19,7 +19,7 @@
 # same modules should appear in the setup.py list as given below.
 
 flake8==7.1.1
-pytest==8.3.3
+pytest==9.0.3
 pytest-xdist==3.6.1
 pyyaml==6.0.2
 
diff --git a/tests/setup.py b/tests/setup.py
index 0ed859c9..d0bad576 100644
--- a/tests/setup.py
+++ b/tests/setup.py
@@ -13,7 +13,7 @@
     name='lib_src_tests',
     packages=setuptools.find_packages(),
     install_requires=[
-        'pytest==8.3.3',
+        'pytest==9.0.3',
         'pytest-xdist==3.6.1',
         'matplotlib==3.9.2',
         'numpy==2.1.1',