diff --git a/CMakeLists.txt b/CMakeLists.txt
index d18407c..db19e0b 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -21,8 +21,7 @@ option(RYML_DBG "Enable (very verbose) ryml debug prints." OFF)
 
 #-------------------------------------------------------
 
-c4_require_subproject(c4core INCORPORATE
-    SUBDIRECTORY ${RYML_EXT_DIR}/c4core)
+find_package(c4core CONFIG REQUIRED)
 
 c4_add_library(ryml
     SOURCES
@@ -54,10 +53,10 @@ c4_add_library(ryml
         ryml.natvis
     SOURCE_ROOT ${RYML_SRC_DIR}
     INC_DIRS
+    $<BUILD_INTERFACE:${C4CORE_INCLUDE_DIR}>
         $<BUILD_INTERFACE:${RYML_SRC_DIR}>
         $<INSTALL_INTERFACE:include>
-    LIBS c4core
-    INCORPORATE c4core
+    LIBS c4core::c4core
     )
 
 if(RYML_WITH_TAB_TOKENS)