diff --git a/packages/toolchain/devel/bison/meta b/packages/toolchain/devel/bison/meta
index 8af9dcbfd1..7c87444348 100644
--- a/packages/toolchain/devel/bison/meta
+++ b/packages/toolchain/devel/bison/meta
@@ -19,7 +19,7 @@
 ################################################################################
 
 PKG_NAME="bison"
-PKG_VERSION="2.6"
+PKG_VERSION="2.5.1"
 PKG_REV="1"
 PKG_ARCH="any"
 PKG_LICENSE="GPL"