diff --git a/CMakeLists.txt b/CMakeLists.txt
index 90cefe3..0a42200 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -8,7 +8,7 @@
 #
 #========================================================================
 
-cmake_minimum_required(VERSION 2.8.12)
+cmake_minimum_required(VERSION 3.5)
 
 project(xpdf)