diff --git a/tools/isl/Makefile b/tools/isl/Makefile
index 32c3cda9a2..e9674debc2 100644
--- a/tools/isl/Makefile
+++ b/tools/isl/Makefile
@@ -7,11 +7,11 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=isl
-PKG_VERSION:=0.24
+PKG_VERSION:=0.25
 
 PKG_SOURCE_URL:=https://libisl.sourceforge.io/
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.xz
-PKG_HASH:=043105cc544f416b48736fff8caf077fb0663a717d06b1113f16e391ac99ebad
+PKG_HASH:=be7b210647ccadf90a2f0b000fca11a4d40546374a850db67adb32fad4b230d9
 
 HOST_BUILD_PARALLEL:=1