diff --git a/srcpkgs/byacc/template b/srcpkgs/byacc/template
index 7fcadd8e642..74e1e239945 100644
--- a/srcpkgs/byacc/template
+++ b/srcpkgs/byacc/template
@@ -1,6 +1,6 @@
 # Template file for 'byacc'
 pkgname=byacc
-version=20170709
+version=20180510
 revision=1
 build_style=gnu-configure
 configure_args="--program-transform=s,^,b,"
@@ -9,7 +9,7 @@ maintainer="Leah Neukirchen <leah@vuxu.org>"
 license="Public Domain"
 homepage="http://invisible-island.net/byacc/"
 distfiles="ftp://ftp.invisible-island.net/${pkgname}/${pkgname}-${version}.tgz"
-checksum=27cf801985dc6082b8732522588a7b64377dd3df841d584ba6150bc86d78d9eb
+checksum=d0940dbffbc7e9c9dd4985c25349c390beede84ae1d9fe86b71c0aa659a6d693
 
 alternatives="
  yacc:yacc:/usr/bin/byacc