diff --git a/cmake/CMakeLists.txt b/cmake/CMakeLists.txt
index c44f9ddc77..419e826aaa 100644
--- a/cmake/CMakeLists.txt
+++ b/cmake/CMakeLists.txt
@@ -17,7 +17,7 @@
 #                                                                              #
 ################################################################################
 
-cmake_minimum_required(VERSION 3.1.3)
+cmake_minimum_required(VERSION 3.5)
 set(CMAKE_CXX_STANDARD 14)
 set(CMAKE_CXX_STANDARD_REQUIRED ON) # not necessary, but encouraged
 
diff --git a/src/ifcopenshell-python/docs/ifcopenshell/installation.rst b/src/ifcopenshell-python/docs/ifcopenshell/installation.rst
index c9942bb038..25faadb764 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/>`__ (3.5 or newer)
 
 IfcOpenShell depends on: