diff --git a/CMakeLists.txt b/CMakeLists.txt
index c1718df..5cc4944 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,7 +1,7 @@
 cmake_minimum_required (VERSION 3.6)
 project (peci-pcie CXX)
 include (ExternalProject)
-set (CMAKE_CXX_STANDARD 17)
+set (CMAKE_CXX_STANDARD 20)
 set (CMAKE_CXX_STANDARD_REQUIRED ON)
 
 add_executable (peci-pcie src/peci_pcie.cpp)