diff --git a/pcl_conversions/CMakeLists.txt b/pcl_conversions/CMakeLists.txt
index d7e59c64..92c9f8c9 100644
--- a/pcl_conversions/CMakeLists.txt
+++ b/pcl_conversions/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.7)
+cmake_minimum_required(VERSION 3.6.3)
 project(pcl_conversions)
 
 find_package(catkin REQUIRED COMPONENTS)