diff --git a/Ports/AvailablePorts.md b/Ports/AvailablePorts.md
index 8cd721e1679..c544e694356 100644
--- a/Ports/AvailablePorts.md
+++ b/Ports/AvailablePorts.md
@@ -123,7 +123,7 @@ This list is also available at [ports.serenityos.net](https://ports.serenityos.n
 | [`imagemagick`](imagemagick/)                       | ImageMagick                                                     | 7.1.1-15                  | https://imagemagick.org                                                        |
 | [`imgcat`](imgcat/)                                 | imgcat                                                          | 2.5.1                     | https://github.com/eddieantonio/imgcat                                         |
 | [`indent`](indent/)                                 | GNU indent                                                      | 2.2.11                    | https://www.gnu.org/software/indent/                                           |
-| [`isl`](isl/)                                       | Integer Set Library                                             | 0.24                      | https://libisl.sourceforge.io/                                                 |
+| [`isl`](isl/)                                       | Integer Set Library                                             | 0.26                      | https://libisl.sourceforge.io/                                                 |
 | [`ja2`](ja2/)                                       | Jagged Alliance 2 Stracciatella                                 | 0.15.x                    | https://github.com/safarp/ja2-stracciatella/tree/0.15.x                        |
 | [`jakt`](jakt/)                                     | Jakt Programming Language                                       |                           | https://github.com/SerenityOS/jakt                                             |
 | [`jdupes`](jdupes/)                                 | jdupes, an enhanced fork of 'fdupes'                            | 1.26.1                    | https://github.com/jbruchon/jdupes                                             |
diff --git a/Ports/isl/package.sh b/Ports/isl/package.sh
index 7a52a1ad162..26cf464c6f0 100755
--- a/Ports/isl/package.sh
+++ b/Ports/isl/package.sh
@@ -1,10 +1,10 @@
 #!/usr/bin/env -S bash ../.port_include.sh
 port='isl'
-version='0.24'
+version='0.26'
 useconfigure='true'
 use_fresh_config_sub='true'
 files=(
-    "https://libisl.sourceforge.io/isl-${version}.tar.xz#043105cc544f416b48736fff8caf077fb0663a717d06b1113f16e391ac99ebad"
+    "https://libisl.sourceforge.io/isl-${version}.tar.xz#a0b5cb06d24f9fa9e77b55fabbe9a3c94a336190345c2555f9915bb38e976504"
 )
 depends=(
     'gmp'