diff --git a/Heat_method_3/doc/Heat_method_3/Heat_method_3.txt b/Heat_method_3/doc/Heat_method_3/Heat_method_3.txt
index e2701f3c8fe..e883eaefc03 100644
--- a/Heat_method_3/doc/Heat_method_3/Heat_method_3.txt
+++ b/Heat_method_3/doc/Heat_method_3/Heat_method_3.txt
@@ -39,7 +39,7 @@ step will roughly double the overall preprocessing cost.
 In the next section we give some examples. Section \ref sec_HM_definitions presents
 the mathematical theory of the Heat method. The last section is about the \ref sec_HM_history.
 
-Note that this package depends on the third party \ref thirdpartyEigen library, or another
+Note that this package depends on the third party \ref thirdpartyEigen library (3.3 or greater), or another
 model of the concept `SparseLinearAlgebraWithFactorTraits_d`.
 This implementation is based on \cgalCite{cgal:cww-ghnac-13} and \cgalCite{cgal:fsbs-acidt-06}
 
diff --git a/Heat_method_3/examples/Heat_method_3/CMakeLists.txt b/Heat_method_3/examples/Heat_method_3/CMakeLists.txt
index 15c2f6ddb17..ceb5dd6ffaf 100644
--- a/Heat_method_3/examples/Heat_method_3/CMakeLists.txt
+++ b/Heat_method_3/examples/Heat_method_3/CMakeLists.txt
@@ -32,12 +32,12 @@ if ( NOT Boost_FOUND )
 endif()
 
 
-find_package(Eigen3 3.2.0)
+find_package(Eigen3 3.3.0)
 
 if (EIGEN3_FOUND)
   include( ${EIGEN3_USE_FILE} )
 else()
-  message(STATUS "This project requires the Boost library, and will not be compiled.")
+  message(STATUS "This project requires the Eigen library (3.3 or greater), and will not be compiled.")
 
   return()
 endif()
diff --git a/Heat_method_3/test/Heat_method_3/CMakeLists.txt b/Heat_method_3/test/Heat_method_3/CMakeLists.txt
index 72951009b2f..9367688a2fb 100644
--- a/Heat_method_3/test/Heat_method_3/CMakeLists.txt
+++ b/Heat_method_3/test/Heat_method_3/CMakeLists.txt
@@ -32,12 +32,12 @@ if ( NOT Boost_FOUND )
 endif()
 
 
-find_package(Eigen3 3.2.0)
+find_package(Eigen3 3.3.0)
 
 if (EIGEN3_FOUND)
   include( ${EIGEN3_USE_FILE} )
 else()  
-  message(STATUS "This project requires the Boost library, and will not be compiled.")
+  message(STATUS "This project requires the  Eigen library (3.3 or greater), and will not be compiled.")
 
   return()
 endif()