diff --git a/CMakeLists.txt b/CMakeLists.txt
index 858d4f8..dd19f32 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -14,7 +14,7 @@ find_package(ignition-cmake2 2.7.0 REQUIRED)
 #============================================================================
 # Configure the project
 #============================================================================
-ign_configure_project(VERSION_SUFFIX pre1)
+ign_configure_project(VERSION_SUFFIX)
 
 # all list of fortress packages
 
@@ -27,7 +27,7 @@ ign_find_package(ignition-math6 REQUIRED COMPONENTS eigen3 VERSION 6.9)
 ign_find_package(ignition-msgs8 REQUIRED)
 ign_find_package(ignition-physics5 REQUIRED)
 ign_find_package(ignition-plugin1 REQUIRED VERSION 1.2.1)
-ign_find_package(ignition-rendering6 REQUIRED)
+ign_find_package(ignition-rendering6 REQUIRED VERSION 6.0.1)
 ign_find_package(ignition-sensors6 REQUIRED)
 ign_find_package(ignition-tools REQUIRED VERSION 1.3)
 ign_find_package(ignition-transport11 REQUIRED)