diff --git a/Weights/examples/Weights/CMakeLists.txt b/Weights/examples/Weights/CMakeLists.txt
index 9645b24d11f..be8efdb3bc6 100644
--- a/Weights/examples/Weights/CMakeLists.txt
+++ b/Weights/examples/Weights/CMakeLists.txt
@@ -17,7 +17,7 @@ create_single_source_cgal_program("projection_traits.cpp")
 create_single_source_cgal_program("custom_traits.cpp")
 create_single_source_cgal_program("convergence.cpp")
 
-find_package(Eigen3 QUIET)
+find_package(Eigen3 3.1.0 QUIET) # (3.1.0 or greater)
 include(CGAL_Eigen3_support)
 if(TARGET CGAL::Eigen3_support)
   create_single_source_cgal_program("weighted_laplacian.cpp")