diff --git a/Ports/AvailablePorts.md b/Ports/AvailablePorts.md
index 5540d7be5e..04da7588be 100644
--- a/Ports/AvailablePorts.md
+++ b/Ports/AvailablePorts.md
@@ -213,6 +213,6 @@ Please make sure to keep this list up to date when adding and updating ports. :^
 | [`wireguard-tools`](wireguard-tools/)  | WireGuard Tools                                                 | 1.0.20210914             | https://www.wireguard.com/                                                     |
 | [`xz`](xz/)                            | xz                                                              | 5.2.5                    | https://tukaani.org/xz/                                                        |
 | [`yasm`](yasm/)                        | Yasm Modular Assembler                                          | 1.3.0                    | https://yasm.tortall.net/                                                      |
-| [`zlib`](zlib/)                        | zlib                                                            | 1.2.11                   | https://www.zlib.net/                                                          |
+| [`zlib`](zlib/)                        | zlib                                                            | 1.2.12                   | https://www.zlib.net/                                                          |
 | [`zsh`](zsh/)                          | Z Shell (Zsh)                                                   | 5.8                      | https://www.zsh.org                                                            |
 | [`zstd`](zstd/)                        | Zstandard                                                       | 1.5.2                    | https://facebook.github.io/zstd/                                               |
diff --git a/Ports/zlib/package.sh b/Ports/zlib/package.sh
index 2641ea770c..4ee53ae490 100755
--- a/Ports/zlib/package.sh
+++ b/Ports/zlib/package.sh
@@ -1,8 +1,8 @@
 #!/usr/bin/env -S bash ../.port_include.sh
 port=zlib
-version=1.2.11
+version=1.2.12
 useconfigure=true
-files="https://www.zlib.net/zlib-${version}.tar.gz zlib-${version}.tar.gz c3e5e9fdd5004dcb542feda5ee4f0ff0744628baf8ed2dd5d66f8ca1197cb1a1"
+files="https://www.zlib.net/zlib-${version}.tar.gz zlib-${version}.tar.gz 91844808532e5ce316b3c010929493c0244f3d37593afd6de04f71821d5136d9"
 auth_type="sha256"
 
 pre_configure() {