diff --git a/requirements-dev.txt b/requirements-dev.txt
index 2d5647c..31961fe 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -2,4 +2,4 @@
 # Production runtime dependencies live in requirements.txt.
 # Install with: pip install -r requirements-dev.txt
 pytest>=9.0.3
-pytest-cov>=5.0.0
+pytest-cov>=6.3.0