diff --git a/Eigen/src/Core/util/Macros.h b/Eigen/src/Core/util/Macros.h
index 28dc8605e..f88f3b3cf 100644
--- a/Eigen/src/Core/util/Macros.h
+++ b/Eigen/src/Core/util/Macros.h
@@ -16,7 +16,7 @@
 //------------------------------------------------------------------------------------------
 
 #define EIGEN_WORLD_VERSION 3
-#define EIGEN_MAJOR_VERSION 3
+#define EIGEN_MAJOR_VERSION 4
 #define EIGEN_MINOR_VERSION 90
 
 #define EIGEN_VERSION_AT_LEAST(x,y,z) (EIGEN_WORLD_VERSION>x || (EIGEN_WORLD_VERSION>=x && \