diff --git a/Ports/AvailablePorts.md b/Ports/AvailablePorts.md
index 7df5062363..23ce74f946 100644
--- a/Ports/AvailablePorts.md
+++ b/Ports/AvailablePorts.md
@@ -15,7 +15,7 @@ Please make sure to keep this list up to date when adding and updating ports. :^
 | [`bison`](bison/)                      | GNU Bison                                                       | 1.25                     | https://www.gnu.org/software/bison/                                            |
 | [`bochs`](bochs/)                      | Bochs x86 PC emulator                                           | 2.7                      | https://sourceforge.net/projects/bochs/                                        |
 | [`brogue`](brogue/)                    | BrogueCE                                                        | 1.10.1                   | https://github.com/tmewett/BrogueCE                                            |
-| [`byacc`](byacc/)                      | Berkeley Yacc                                                   | 20210808                 | https://invisible-island.net/byacc/byacc.html                                  |
+| [`byacc`](byacc/)                      | Berkeley Yacc                                                   | 20220128                 | https://invisible-island.net/byacc/byacc.html                                  |
 | [`bzip2`](bzip2/)                      | bzip2                                                           | 1.0.8                    | https://sourceware.org/bzip2/                                                  |
 | [`ca-certificates`](ca-certificates/)  | Mozilla CA certificate store                                    | 2022-02-01               | https://curl.se/docs/caextract.html                                            |
 | [`carl`](carl/)                        | Crypto Ancienne Resource Loader                                 | 1.5                      | https://github.com/classilla/cryanc                                            |
diff --git a/Ports/byacc/package.sh b/Ports/byacc/package.sh
index 146b3fbdde..69ef30e4ee 100755
--- a/Ports/byacc/package.sh
+++ b/Ports/byacc/package.sh
@@ -1,6 +1,6 @@
 #!/usr/bin/env -S bash ../.port_include.sh
 port=byacc
-version=20210808
+version=20220128
 files="https://invisible-mirror.net/archives/byacc/byacc-${version}.tgz byacc-${version}.tgz
 https://invisible-mirror.net/archives/byacc/byacc-${version}.tgz.asc byacc-${version}.tgz.asc"
 useconfigure=true