diff --git a/bison.spec b/bison.spec
index 528ea0d..94a23e7 100644
--- a/bison.spec
+++ b/bison.spec
@@ -1,7 +1,7 @@
 Summary: A GNU general-purpose parser generator
 Name: bison
-Version: 3.4.1
-Release: 2%{?dist}
+Version: 3.5
+Release: 1%{?dist}
 License: GPLv3+
 Source: ftp://ftp.gnu.org/pub/gnu/bison/bison-%{version}.tar.xz
 
@@ -113,6 +113,9 @@ gzip -9nf ${RPM_BUILD_ROOT}%{_infodir}/bison.info*
 %{_libdir}/liby.a
 
 %changelog
+* Tue Jan  7 2020 Arjun Shankar <arjun@redhat.com> - 3.5-1
+- Update to bison 3.5 (#1751843)
+
 * Wed Jul 24 2019 Fedora Release Engineering <releng@fedoraproject.org> - 3.4.1-2
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild
 
diff --git a/sources b/sources
index fa851cb..a6be33c 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (bison-3.4.1.tar.xz) = 544d66bf11c55a69fad613bea429667c587fb0c3774f6894df81cb3c7931a554f79e6b71d6a6e9109e164e524c632127c967877f71328cd0b69a683d29ed128d
+SHA512 (bison-3.5.tar.xz) = 309ba77cfbf5d5ca697f522ac18ca9b55a1ec4e690b87220c97ffb1137b8bd8b22aa14c111166f0f4bf001e88f4bcbfd0583bc09810c246f0dc60fd6e8478950