--- a/CMakeLists.txt	2024-04-16 20:26:03.000000000 +0200
+++ b/CMakeLists.txt	2026-10-16 22:41:29.810652713 +0200
@@ -34,7 +34,10 @@ if(POLICY CMP0054)
     cmake_policy(SET CMP0054 NEW) # Quotes variables in IF statments
 endif()
 
-find_package(Eigen3 3.1 REQUIRED CONFIG)
+find_package(Eigen3 REQUIRED CONFIG)
+if(NOT EIGEN3_INCLUDE_DIR)
+    get_target_property(EIGEN3_INCLUDE_DIR Eigen3::Eigen INTERFACE_INCLUDE_DIRECTORIES)
+endif()
 message(STATUS "[fgt] Eigen3 version: ${EIGEN3_VERSION_STRING}")
 
 set(GTEST_SOURCE_DIR ${PROJECT_SOURCE_DIR}/vendor/googletest-release-1.10.0)