diff --git a/package/bison/bison.mk b/package/bison/bison.mk
index a1de39aa79..51325bda22 100644
--- a/package/bison/bison.mk
+++ b/package/bison/bison.mk
@@ -4,7 +4,7 @@
 #
 #############################################################
 
-BISON_VERSION = 2.5
+BISON_VERSION = 2.5.1
 BISON_SITE = $(BR2_GNU_MIRROR)/bison
 
 BISON_CONF_ENV += ac_cv_path_M4=/usr/bin/m4