diff --git a/Externals/imgui/CMakeLists.txt b/Externals/imgui/CMakeLists.txt
index 16e5ee486f..becebfbe65 100644
--- a/Externals/imgui/CMakeLists.txt
+++ b/Externals/imgui/CMakeLists.txt
@@ -1,5 +1,5 @@
 if (NOT MSVC)
-  set(CMAKE_CXX_STANDARD 17)
+  set(CMAKE_CXX_STANDARD 20)
   set(CMAKE_CXX_STANDARD_REQUIRED ON)
   set(CMAKE_CXX_EXTENSIONS OFF)
 endif()