diff --git a/pyproject.toml b/pyproject.toml
index 61007f2..b0d6ed2 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -52,7 +52,7 @@ dev = [
     "pandas>=2.0.3; python_version<'3.10'",
     "numpy>=2.0.2,<3; python_version>='3.10'",
     "pandas>=2.3.0,<4; python_version>='3.10'",
-    "pytest==8.4.2",
+    "pytest==9.0.3",
     "pytest-cov==7.0.0",
     "derp==0.1.1",
     "tomli>=2.2.1",
diff --git a/test_requirements.txt b/test_requirements.txt
index c8f0654..6b510e5 100644
--- a/test_requirements.txt
+++ b/test_requirements.txt
@@ -4,6 +4,6 @@ numpy==1.24.4; python_version<'3.10'
 pandas==2.0.3; python_version<'3.10'
 numpy>=2.0.2,<=2.1.0; python_version>='3.10'
 pandas==2.3.0; python_version>='3.10'
-pytest==8.4.2
+pytest==9.0.3
 pytest-cov==7.0.0
 derp==0.1.1