diff --git a/src/EterLib/StdAfx.h b/src/EterLib/StdAfx.h
index b9698fb..485e790 100644
--- a/src/EterLib/StdAfx.h
+++ b/src/EterLib/StdAfx.h
@@ -1,6 +1,8 @@
 #pragma once
 
-#define WIN32_LEAN_AND_MEAN	
+#ifndef WIN32_LEAN_AND_MEAN
+#define WIN32_LEAN_AND_MEAN
+#endif	
 #ifndef _CRT_SECURE_NO_WARNINGS
 #define _CRT_SECURE_NO_WARNINGS
 #endif
diff --git a/vendor/cryptopp/CMakeLists.txt b/vendor/cryptopp/CMakeLists.txt
index b36e982..9569e1e 100644
--- a/vendor/cryptopp/CMakeLists.txt
+++ b/vendor/cryptopp/CMakeLists.txt
@@ -31,7 +31,7 @@ message( STATUS "CMake version ${CMAKE_VERSION}" )
 message( STATUS "System ${CMAKE_SYSTEM_NAME}" )
 message( STATUS "Processor ${CMAKE_SYSTEM_PROCESSOR}" )
 
-cmake_minimum_required(VERSION 2.8.6)
+cmake_minimum_required(VERSION 3.10)
 if (${CMAKE_VERSION} VERSION_LESS "3.0.0")
   project(cryptopp)
   set(cryptopp_VERSION_MAJOR 8)
diff --git a/vendor/lzo-2.10/CMakeLists.txt b/vendor/lzo-2.10/CMakeLists.txt
index 67e771d..d8044c7 100644
--- a/vendor/lzo-2.10/CMakeLists.txt
+++ b/vendor/lzo-2.10/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.0 FATAL_ERROR)
+cmake_minimum_required(VERSION 3.10 FATAL_ERROR)
 
 project(lzo2 VERSION 2.10 LANGUAGES C)