diff --git a/linux-arm64-lts/crosstool-ng.config b/linux-arm64-lts/crosstool-ng.config
index 189644b..3852e54 100644
--- a/linux-arm64-lts/crosstool-ng.config
+++ b/linux-arm64-lts/crosstool-ng.config
@@ -759,7 +759,7 @@ CT_ISL_V_0_24=y
 # CT_ISL_V_0_16 is not set
 # CT_ISL_V_0_15 is not set
 CT_ISL_VERSION="0.24"
-CT_ISL_MIRRORS="http://isl.gforge.inria.fr"
+CT_ISL_MIRRORS="http://ftp.slackware.com/pub/slackware/slackware64-current/source/l/isl"
 CT_ISL_ARCHIVE_FILENAME="@{pkg_name}-@{version}"
 CT_ISL_ARCHIVE_DIRNAME="@{pkg_name}-@{version}"
 CT_ISL_ARCHIVE_FORMATS=".tar.xz .tar.bz2 .tar.gz"
diff --git a/linux-arm64/crosstool-ng.config b/linux-arm64/crosstool-ng.config
index 01f0087..b93dd38 100644
--- a/linux-arm64/crosstool-ng.config
+++ b/linux-arm64/crosstool-ng.config
@@ -757,7 +757,7 @@ CT_ISL_V_0_24=y
 # CT_ISL_V_0_16 is not set
 # CT_ISL_V_0_15 is not set
 CT_ISL_VERSION="0.24"
-CT_ISL_MIRRORS="http://isl.gforge.inria.fr"
+CT_ISL_MIRRORS="http://ftp.slackware.com/pub/slackware/slackware64-current/source/l/isl"
 CT_ISL_ARCHIVE_FILENAME="@{pkg_name}-@{version}"
 CT_ISL_ARCHIVE_DIRNAME="@{pkg_name}-@{version}"
 CT_ISL_ARCHIVE_FORMATS=".tar.xz .tar.bz2 .tar.gz"
diff --git a/linux-armv5-musl/crosstool-ng.config b/linux-armv5-musl/crosstool-ng.config
index 6f9e69c..aa445e2 100755
--- a/linux-armv5-musl/crosstool-ng.config
+++ b/linux-armv5-musl/crosstool-ng.config
@@ -766,7 +766,7 @@ CT_ISL_V_0_24=y
 # CT_ISL_V_0_16 is not set
 # CT_ISL_V_0_15 is not set
 CT_ISL_VERSION="0.24"
-CT_ISL_MIRRORS="http://isl.gforge.inria.fr"
+CT_ISL_MIRRORS="http://ftp.slackware.com/pub/slackware/slackware64-current/source/l/isl"
 CT_ISL_ARCHIVE_FILENAME="@{pkg_name}-@{version}"
 CT_ISL_ARCHIVE_DIRNAME="@{pkg_name}-@{version}"
 CT_ISL_ARCHIVE_FORMATS=".tar.xz .tar.bz2 .tar.gz"
diff --git a/linux-armv5/crosstool-ng.config b/linux-armv5/crosstool-ng.config
index 8b33684..b888b5f 100644
--- a/linux-armv5/crosstool-ng.config
+++ b/linux-armv5/crosstool-ng.config
@@ -771,7 +771,7 @@ CT_ISL_V_0_24=y
 # CT_ISL_V_0_16 is not set
 # CT_ISL_V_0_15 is not set
 CT_ISL_VERSION="0.24"
-CT_ISL_MIRRORS="http://isl.gforge.inria.fr"
+CT_ISL_MIRRORS="http://ftp.slackware.com/pub/slackware/slackware64-current/source/l/isl"
 CT_ISL_ARCHIVE_FILENAME="@{pkg_name}-@{version}"
 CT_ISL_ARCHIVE_DIRNAME="@{pkg_name}-@{version}"
 CT_ISL_ARCHIVE_FORMATS=".tar.xz .tar.bz2 .tar.gz"
diff --git a/linux-armv6-lts/crosstool-ng.config b/linux-armv6-lts/crosstool-ng.config
index 12a8377..d7d2cc2 100644
--- a/linux-armv6-lts/crosstool-ng.config
+++ b/linux-armv6-lts/crosstool-ng.config
@@ -772,7 +772,7 @@ CT_ISL_V_0_24=y
 # CT_ISL_V_0_16 is not set
 # CT_ISL_V_0_15 is not set
 CT_ISL_VERSION="0.24"
-CT_ISL_MIRRORS="http://isl.gforge.inria.fr"
+CT_ISL_MIRRORS="http://ftp.slackware.com/pub/slackware/slackware64-current/source/l/isl"
 CT_ISL_ARCHIVE_FILENAME="@{pkg_name}-@{version}"
 CT_ISL_ARCHIVE_DIRNAME="@{pkg_name}-@{version}"
 CT_ISL_ARCHIVE_FORMATS=".tar.xz .tar.bz2 .tar.gz"
diff --git a/linux-armv6/crosstool-ng.config b/linux-armv6/crosstool-ng.config
index 886969e..a4306d6 100644
--- a/linux-armv6/crosstool-ng.config
+++ b/linux-armv6/crosstool-ng.config
@@ -773,7 +773,7 @@ CT_ISL_V_0_24=y
 # CT_ISL_V_0_16 is not set
 # CT_ISL_V_0_15 is not set
 CT_ISL_VERSION="0.24"
-CT_ISL_MIRRORS="http://isl.gforge.inria.fr"
+CT_ISL_MIRRORS="http://ftp.slackware.com/pub/slackware/slackware64-current/source/l/isl"
 CT_ISL_ARCHIVE_FILENAME="@{pkg_name}-@{version}"
 CT_ISL_ARCHIVE_DIRNAME="@{pkg_name}-@{version}"
 CT_ISL_ARCHIVE_FORMATS=".tar.xz .tar.bz2 .tar.gz"
diff --git a/linux-armv7/crosstool-ng.config b/linux-armv7/crosstool-ng.config
index 8f65f2e..5e6b90e 100644
--- a/linux-armv7/crosstool-ng.config
+++ b/linux-armv7/crosstool-ng.config
@@ -773,7 +773,7 @@ CT_ISL_V_0_24=y
 # CT_ISL_V_0_16 is not set
 # CT_ISL_V_0_15 is not set
 CT_ISL_VERSION="0.24"
-CT_ISL_MIRRORS="http://isl.gforge.inria.fr"
+CT_ISL_MIRRORS="http://ftp.slackware.com/pub/slackware/slackware64-current/source/l/isl"
 CT_ISL_ARCHIVE_FILENAME="@{pkg_name}-@{version}"
 CT_ISL_ARCHIVE_DIRNAME="@{pkg_name}-@{version}"
 CT_ISL_ARCHIVE_FORMATS=".tar.xz .tar.bz2 .tar.gz"
diff --git a/linux-armv7a/crosstool-ng.config b/linux-armv7a/crosstool-ng.config
index 3c6d37f..63121a8 100644
--- a/linux-armv7a/crosstool-ng.config
+++ b/linux-armv7a/crosstool-ng.config
@@ -773,7 +773,7 @@ CT_ISL_V_0_24=y
 # CT_ISL_V_0_16 is not set
 # CT_ISL_V_0_15 is not set
 CT_ISL_VERSION="0.24"
-CT_ISL_MIRRORS="http://isl.gforge.inria.fr"
+CT_ISL_MIRRORS="http://ftp.slackware.com/pub/slackware/slackware64-current/source/l/isl"
 CT_ISL_ARCHIVE_FILENAME="@{pkg_name}-@{version}"
 CT_ISL_ARCHIVE_DIRNAME="@{pkg_name}-@{version}"
 CT_ISL_ARCHIVE_FORMATS=".tar.xz .tar.bz2 .tar.gz"
diff --git a/linux-m68k-uclibc/crosstool-ng.config b/linux-m68k-uclibc/crosstool-ng.config
index 40681ce..ca50642 100644
--- a/linux-m68k-uclibc/crosstool-ng.config
+++ b/linux-m68k-uclibc/crosstool-ng.config
@@ -682,7 +682,7 @@ CT_ISL_V_0_22=y
 # CT_ISL_V_0_16 is not set
 # CT_ISL_V_0_15 is not set
 CT_ISL_VERSION="0.22"
-CT_ISL_MIRRORS="http://isl.gforge.inria.fr"
+CT_ISL_MIRRORS="http://ftp.slackware.com/pub/slackware/slackware64-current/source/l/isl"
 CT_ISL_ARCHIVE_FILENAME="@{pkg_name}-@{version}"
 CT_ISL_ARCHIVE_DIRNAME="@{pkg_name}-@{version}"
 CT_ISL_ARCHIVE_FORMATS=".tar.xz .tar.bz2 .tar.gz"
diff --git a/linux-mips/crosstool-ng.config b/linux-mips/crosstool-ng.config
index 62722b7..27736a8 100644
--- a/linux-mips/crosstool-ng.config
+++ b/linux-mips/crosstool-ng.config
@@ -758,7 +758,7 @@ CT_ISL_V_0_24=y
 # CT_ISL_V_0_16 is not set
 # CT_ISL_V_0_15 is not set
 CT_ISL_VERSION="0.24"
-CT_ISL_MIRRORS="http://isl.gforge.inria.fr"
+CT_ISL_MIRRORS="http://ftp.slackware.com/pub/slackware/slackware64-current/source/l/isl"
 CT_ISL_ARCHIVE_FILENAME="@{pkg_name}-@{version}"
 CT_ISL_ARCHIVE_DIRNAME="@{pkg_name}-@{version}"
 CT_ISL_ARCHIVE_FORMATS=".tar.xz .tar.bz2 .tar.gz"
diff --git a/linux-ppc64le/crosstool-ng.config b/linux-ppc64le/crosstool-ng.config
index 348d0ca..7d5dbdd 100644
--- a/linux-ppc64le/crosstool-ng.config
+++ b/linux-ppc64le/crosstool-ng.config
@@ -754,7 +754,7 @@ CT_ISL_V_0_24=y
 # CT_ISL_V_0_16 is not set
 # CT_ISL_V_0_15 is not set
 CT_ISL_VERSION="0.24"
-CT_ISL_MIRRORS="http://isl.gforge.inria.fr"
+CT_ISL_MIRRORS="http://ftp.slackware.com/pub/slackware/slackware64-current/source/l/isl"
 CT_ISL_ARCHIVE_FILENAME="@{pkg_name}-@{version}"
 CT_ISL_ARCHIVE_DIRNAME="@{pkg_name}-@{version}"
 CT_ISL_ARCHIVE_FORMATS=".tar.xz .tar.bz2 .tar.gz"
diff --git a/linux-riscv32/crosstool-ng.config b/linux-riscv32/crosstool-ng.config
index a1f89ca..f2a7d5a 100644
--- a/linux-riscv32/crosstool-ng.config
+++ b/linux-riscv32/crosstool-ng.config
@@ -798,7 +798,7 @@ CT_ISL_V_0_24=y
 # CT_ISL_V_0_16 is not set
 # CT_ISL_V_0_15 is not set
 CT_ISL_VERSION="0.24"
-CT_ISL_MIRRORS="http://isl.gforge.inria.fr"
+CT_ISL_MIRRORS="http://ftp.slackware.com/pub/slackware/slackware64-current/source/l/isl"
 CT_ISL_ARCHIVE_FILENAME="@{pkg_name}-@{version}"
 CT_ISL_ARCHIVE_DIRNAME="@{pkg_name}-@{version}"
 CT_ISL_ARCHIVE_FORMATS=".tar.xz .tar.bz2 .tar.gz"
diff --git a/linux-riscv64/crosstool-ng.config b/linux-riscv64/crosstool-ng.config
index 33d947d..1cf50bb 100644
--- a/linux-riscv64/crosstool-ng.config
+++ b/linux-riscv64/crosstool-ng.config
@@ -798,7 +798,7 @@ CT_ISL_V_0_24=y
 # CT_ISL_V_0_16 is not set
 # CT_ISL_V_0_15 is not set
 CT_ISL_VERSION="0.24"
-CT_ISL_MIRRORS="http://isl.gforge.inria.fr"
+CT_ISL_MIRRORS="http://ftp.slackware.com/pub/slackware/slackware64-current/source/l/isl"
 CT_ISL_ARCHIVE_FILENAME="@{pkg_name}-@{version}"
 CT_ISL_ARCHIVE_DIRNAME="@{pkg_name}-@{version}"
 CT_ISL_ARCHIVE_FORMATS=".tar.xz .tar.bz2 .tar.gz"
diff --git a/linux-s390x/crosstool-ng.config b/linux-s390x/crosstool-ng.config
index 6aaf772..c9b8a71 100644
--- a/linux-s390x/crosstool-ng.config
+++ b/linux-s390x/crosstool-ng.config
@@ -721,7 +721,7 @@ CT_ISL_V_0_24=y
 # CT_ISL_V_0_16 is not set
 # CT_ISL_V_0_15 is not set
 CT_ISL_VERSION="0.24"
-CT_ISL_MIRRORS="http://isl.gforge.inria.fr"
+CT_ISL_MIRRORS="http://ftp.slackware.com/pub/slackware/slackware64-current/source/l/isl"
 CT_ISL_ARCHIVE_FILENAME="@{pkg_name}-@{version}"
 CT_ISL_ARCHIVE_DIRNAME="@{pkg_name}-@{version}"
 CT_ISL_ARCHIVE_FORMATS=".tar.xz .tar.bz2 .tar.gz"
diff --git a/linux-xtensa-uclibc/crosstool-ng.config b/linux-xtensa-uclibc/crosstool-ng.config
index ed47fb0..2044cbd 100644
--- a/linux-xtensa-uclibc/crosstool-ng.config
+++ b/linux-xtensa-uclibc/crosstool-ng.config
@@ -686,7 +686,7 @@ CT_ISL_V_0_24=y
 # CT_ISL_V_0_16 is not set
 # CT_ISL_V_0_15 is not set
 CT_ISL_VERSION="0.24"
-CT_ISL_MIRRORS="http://isl.gforge.inria.fr"
+CT_ISL_MIRRORS="http://ftp.slackware.com/pub/slackware/slackware64-current/source/l/isl"
 CT_ISL_ARCHIVE_FILENAME="@{pkg_name}-@{version}"
 CT_ISL_ARCHIVE_DIRNAME="@{pkg_name}-@{version}"
 CT_ISL_ARCHIVE_FORMATS=".tar.xz .tar.bz2 .tar.gz"