diff --git a/releases/portage/isos/package.mask/releng/glibc b/releases/portage/isos/package.mask/releng/glibc
index 4316c738..16eb227f 100644
--- a/releases/portage/isos/package.mask/releng/glibc
+++ b/releases/portage/isos/package.mask/releng/glibc
@@ -2,4 +2,4 @@
 # new glibc tends to lead to trouble with sandbox (and qemu),
 # especially for the unstable arches
 #
->=sys-libs/glibc-2.39
+>=sys-libs/glibc-2.40
diff --git a/releases/portage/livegui/package.mask/releng/glibc b/releases/portage/livegui/package.mask/releng/glibc
index 4316c738..16eb227f 100644
--- a/releases/portage/livegui/package.mask/releng/glibc
+++ b/releases/portage/livegui/package.mask/releng/glibc
@@ -2,4 +2,4 @@
 # new glibc tends to lead to trouble with sandbox (and qemu),
 # especially for the unstable arches
 #
->=sys-libs/glibc-2.39
+>=sys-libs/glibc-2.40
diff --git a/releases/portage/stages/package.mask/releng/glibc b/releases/portage/stages/package.mask/releng/glibc
index 4316c738..16eb227f 100644
--- a/releases/portage/stages/package.mask/releng/glibc
+++ b/releases/portage/stages/package.mask/releng/glibc
@@ -2,4 +2,4 @@
 # new glibc tends to lead to trouble with sandbox (and qemu),
 # especially for the unstable arches
 #
->=sys-libs/glibc-2.39
+>=sys-libs/glibc-2.40