diff --git a/Makefile b/Makefile
index 2730aa770..854baf63a 100644
--- a/Makefile
+++ b/Makefile
@@ -39,7 +39,7 @@ DEBUG=${ALL_DEBUG}
 #export OPTZ
 #export EXTRALINK
 export MAKE
-export CURVER?=2.5.2
+export CURVER?=2.5.3
 ifneq (,$(wildcard /etc/os-release))
 	DISTRO := $(shell gawk -F= '/^NAME/{print $$2}' /etc/os-release)
 else