diff --git a/requirements-dev.txt b/requirements-dev.txt
index 90e78e1..dd771ac 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -2,6 +2,6 @@ bump2version==1.0.1
 numpy==1.24.1
 packaging==23.0
 h5py==3.8.0
-pytest-cov==4.0.0
+pytest-cov==6.0.0
 pytest==7.2.1
 coveralls==3.3.1