diff --git a/byacc.spec b/byacc.spec
index 816bb36..0674363 100644
--- a/byacc.spec
+++ b/byacc.spec
@@ -1,4 +1,4 @@
-%define byaccdate 20200910
+%define byaccdate 20210109
 
 Summary: Berkeley Yacc, a parser generator
 Name: byacc
@@ -9,6 +9,7 @@ URL: http://invisible-island.net/byacc/byacc.html
 Source: ftp://invisible-island.net/byacc/byacc-%{byaccdate}.tgz
 
 BuildRequires:  gcc
+BuildRequires: make
 
 %description
 This package provides a parser generator utility that reads a grammar
@@ -50,6 +51,9 @@ echo ====================TESTING END=====================
 %{_mandir}/man1/byacc.1*
 
 %changelog
+* Tue Jan 12 2021 Arjun Shankar <arjun@redhat.com> - 2.0-20210109-1
+- Rebase to byacc-2.0-20210109 (#1914591)
+
 * Tue Nov 10 2020 Arjun Shankar <arjun@redhat.com> - 2.0-20200910-1
 - Rebase to byacc-2.0-20200910 (#1877980)
 
diff --git a/sources b/sources
index f8fc458..ac895a9 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (byacc-20200910.tgz) = 491bbde2d5b0fdf2ad57bec5080112ad7c12ce3830b5e14f2289092aad1addae6edd4698368a9c8d69219a95ae5fa47eb32a95a2625841915297972591bebea3
+SHA512 (byacc-20210109.tgz) = 95eafe81948fee1839fed8fff71d65c23d85de02af51672c118b2eed7c680f0dd300cec54cf366a248307c480844edc66a027575b29e20ef2f71f3c243ad5202