diff --git a/src/ifcopenshell-python/docs/ifcopenshell/installation.rst b/src/ifcopenshell-python/docs/ifcopenshell/installation.rst
index c9942bb038..6b93b044ed 100644
--- a/src/ifcopenshell-python/docs/ifcopenshell/installation.rst
+++ b/src/ifcopenshell-python/docs/ifcopenshell/installation.rst
@@ -13,7 +13,7 @@ you how to compile and install IfcOpenShell.
 You will need:
 
 - `Git <https://git-scm.com/>`__
-- `CMake <https://cmake.org/>`__ (3.1.3 or newer)
+- `CMake <https://cmake.org/>`__ (3.21 or newer)
 
 IfcOpenShell depends on: