diff --git a/CMakeLists.txt b/CMakeLists.txt
index 6761295..3e63ea9 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.1)
+cmake_minimum_required(VERSION 3.4)
 
 project(olm VERSION 3.1.0 LANGUAGES CXX C)
 
@@ -15,6 +15,7 @@ set(CMAKE_CXX_STANDARD_REQUIRED ON)
 set(CMAKE_C_STANDARD 99)
 set(CMAKE_C_STANDARD_REQUIRED ON)
 set(CMAKE_POSITION_INDEPENDENT_CODE ON)
+set(CMAKE_WINDOWS_EXPORT_ALL_SYMBOLS ON)
 
 if(NOT CMAKE_BUILD_TYPE)
     set(CMAKE_BUILD_TYPE Release)