diff --git a/CMakeLists.txt b/CMakeLists.txt
index 82a5848331bdf4e0a5d841461bdc230c69593693..7e0a96a4b24df03f81eb5ae4c24a0cf9a62968d2 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -72,7 +72,7 @@ ELSE()
 ENDIF()
 
 # Eigen
-FIND_PACKAGE(EIGEN 3.3.4 REQUIRED)
+FIND_PACKAGE(EIGEN 3.4.0 REQUIRED)
 
 # CoDiPack
 IF(USE_CODI)