diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 02b7710525a3..3a4be25a7a3b 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -7281,7 +7281,7 @@ self: super: with self; {
 
   isbnlib = callPackage ../development/python-modules/isbnlib { };
 
-  islpy = callPackage ../development/python-modules/islpy { isl = pkgs.isl_0_24; };
+  islpy = callPackage ../development/python-modules/islpy { isl = pkgs.isl_0_27; };
 
   ismartgate = callPackage ../development/python-modules/ismartgate { };