diff --git a/pyproject.toml b/pyproject.toml
index 2d67e834012..fc36e4a356d 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -56,7 +56,7 @@ test = [
     "colorama",
     "openpyxl",
 ]
-ci = ["coverage>=7.4", "gcovr>=7.2"]
+ci = ["coverage>=7.4", "gcovr>=7.2,<8.5"]
 vtk = ["vtk"]
 
 [project.urls]