diff --git a/tools/gmp/Makefile b/tools/gmp/Makefile
index ca80415bc863e5a8f76d3c7577ab6418ac59e5c4..463cbe9f5c4f1d47bfa942c3e51299d4bca5f331 100644
--- a/tools/gmp/Makefile
+++ b/tools/gmp/Makefile
@@ -7,11 +7,11 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=gmp
-PKG_VERSION:=5.1.2
+PKG_VERSION:=5.1.3
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.xz
 PKG_SOURCE_URL:=@GNU/gmp/
-PKG_MD5SUM:=06fe2ca164221c59ce74867155cfc1ac
+PKG_MD5SUM:=e5fe367801ff067b923d1e6a126448aa
 
 HOST_FIXUP:=autoreconf