--- a/Code/PgSQL/rdkit/CMakeLists.txt
+++ b/Code/PgSQL/rdkit/CMakeLists.txt
@@ -1,3 +1,12 @@
+cmake_minimum_required(VERSION 3.18)
+
+project (RDKit_PgSQL)
+
+set(CMAKE_CXX_STANDARD 20)
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
+set(CMAKE_C_STANDARD 99)
+set(CMAKE_C_STANDARD_REQUIRED ON)
+
 find_package(PostgreSQL REQUIRED)
 
 if(APPLE)