diff --git a/pyproject.toml b/pyproject.toml
index 0efe9ba..a93ab97 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -50,7 +50,7 @@ rdkit = { version = "2024.9.6", optional = true }
 
 [tool.poetry.group.dev.dependencies]
 pytest = "8.3.5"
-pytest-cov = "6.1.1"
+pytest-cov = "6.2.1"
 
 [tool.poetry.extras]
 meta = ["rdkit", "bpy", "pyyaml", "ovito"]