diff --git a/dev_requirements.txt b/dev_requirements.txt
index d0cd75e..ed58d94 100644
--- a/dev_requirements.txt
+++ b/dev_requirements.txt
@@ -12,5 +12,5 @@ defusedxml==0.7.1
 # Quality tooling — used by .github/workflows/quality.yml and locally.
 ruff==0.15.14
 bandit==1.9.4
-pytest==9.0.3
+pytest==9.1.0
 pytest-timeout==2.4.0