diff --git a/pyproject.toml b/pyproject.toml
index 31af56169..03e7498e0 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -69,7 +69,7 @@ test = [
     "pytest>=8.3.3",
     "pytest-cov>=6.0.0",
     "pyvista==0.46.3",
-    "vtk==9.4.2",
+    "vtk==9.5.1",
     "ansys-dpf-core==0.14.1",
 ]
 doc = [