diff --git a/debian/changelog b/debian/changelog
index 69cf97a9..d40c253a 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,3 +1,9 @@
+livecd-rootfs (2.279) vivid; urgency=medium
+
+  * Revert changes to post-debootstrap hashes for core.
+
+ -- Loïc Minier <loic.minier@ubuntu.com>  Wed, 04 Feb 2015 16:32:09 +0100
+
 livecd-rootfs (2.278) vivid; urgency=medium
 
   * Add live-build/ubuntu-core/hooks/99zz-check-uid-gid.chroot, copy of
diff --git a/live-build/ubuntu-core/hooks/00-uid-gid-fix.chroot_early b/live-build/ubuntu-core/hooks/00-uid-gid-fix.chroot_early
index 2ac5f474..766cc44e 100755
--- a/live-build/ubuntu-core/hooks/00-uid-gid-fix.chroot_early
+++ b/live-build/ubuntu-core/hooks/00-uid-gid-fix.chroot_early
@@ -1,10 +1,10 @@
 #!/bin/sh -eu
 
 # Known good post-debootstrap values
-passwd_bootstrap="9ebb1c3da5b0ad8f1d366528b32c97cb"
-shadow_bootstrap="1c562aa2ed2f443b9151953e800eca16"
-group_bootstrap="60cd81599d39db5d624e63c8c18d4a5e"
-gshadow_bootstrap="3819432fb99fe6b8f38410c58d503de1"
+passwd_bootstrap="9738946debbc125bd6cf3f197582a8a5"
+shadow_bootstrap="4d299751999cae6de045390dd568812c"
+group_bootstrap="dd4a0ebdd3f5d170d5a46e6bade5c6c3"
+gshadow_bootstrap="42025e85925432105b429b7c801a50a4"
 
 # Current post-debootstrap values
 passwd_hash=$(set -- $(md5sum /etc/passwd) && echo $1)