diff --git a/pyproject.toml b/pyproject.toml
index 86b333ee3b..0baaba932e 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -27,7 +27,7 @@ classifiers = [
 dependencies = [
     "cffi>=1.16.0,<1.18; platform_system=='Linux'",
     "pywin32 >= 303;platform_system=='Windows'",
-    "ansys-pythonnet >= 3.1.0rc3",
+    "ansys-pythonnet >= 3.1.0rc4",
     "dotnetcore2 ==3.1.23;platform_system=='Linux'",
     "numpy>=1.20.0,<3",
     "pandas>=1.1.0,<2.3",