diff --git a/externals/CMakeLists.txt b/externals/CMakeLists.txt
index e5733b98..2f9336c2 100644
--- a/externals/CMakeLists.txt
+++ b/externals/CMakeLists.txt
@@ -16,11 +16,8 @@ endif()
 # Boost
 if (NOT TARGET Boost::headers)
     set(BOOST_ROOT "${CMAKE_SOURCE_DIR}/externals/ext-boost" CACHE STRING "")
-    set(Boost_INCLUDE_DIR "${CMAKE_SOURCE_DIR}/externals/ext-boost" CACHE STRING "")
     set(Boost_NO_SYSTEM_PATHS ON CACHE BOOL "")
-    add_library(boost INTERFACE)
-    target_include_directories(boost INTERFACE ${Boost_INCLUDE_DIR})
-    add_library(Boost::headers ALIAS boost)
+    add_subdirectory(ext-boost)
 endif()
 
 # fmtlib
diff --git a/externals/ext-boost b/externals/ext-boost
index a04136ad..f2474e1b 160000
--- a/externals/ext-boost
+++ b/externals/ext-boost
@@ -1 +1 @@
-Subproject commit a04136add1e469f46d8ae8d3e8307779240a5c53
+Subproject commit f2474e1b584fb7a3ed6f85ba875e6eacd742ec8a