diff --git a/byacc.spec b/byacc.spec
index 9c1f4d3..f4c808b 100644
--- a/byacc.spec
+++ b/byacc.spec
@@ -1,4 +1,4 @@
-%define byaccdate 20230219
+%define byaccdate 20230521
 
 Summary: Berkeley Yacc, a parser generator
 Name: byacc
@@ -51,6 +51,9 @@ echo ====================TESTING END=====================
 %{_mandir}/man1/byacc.1*
 
 %changelog
+* Thu Jun 29 2023 Arjun Shankar <arjun@redhat.com> - 2.0.20230521-1
+- Rebase to byacc-2.0.20230521 (#2208910)
+
 * Thu Feb 23 2023 Arjun Shankar <arjun@redhat.com> - 2.0.20230219-1
 - Rebase to byacc-2.0.20230219 (#2156901)
 
diff --git a/sources b/sources
index d2e5648..87e9838 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (byacc-20230219.tgz) = 55fb9abc82afffb68a2167eb3f6211b1c2c91dda4f3b6004c01c46b2022bbec4ed8f793cfb86094eaa66decbd40d9e6f06af5b0da9d72f30ca0676aa38eb2d5e
+SHA512 (byacc-20230521.tgz) = 9437806510f49a785ab7d4685c56708cd0053d242f1491e9c40af36112d6c6c471e579a75da75980a0356c1c9f319afbb8cc01139d6823511d285e0dd413d9c4