diff --git a/CMakeLists.txt b/CMakeLists.txt
index 63241c5..97282be 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -3,6 +3,7 @@
 
 add_library(peci SHARED peci.c)
 
+set(CMAKE_CXX_STANDARD 20)
 set_property(TARGET peci PROPERTY C_STANDARD 99)
 target_include_directories(peci PUBLIC ${CMAKE_CURRENT_SOURCE_DIR})
 set_target_properties(peci PROPERTIES VERSION "1.0" SOVERSION "1")