diff --git a/contrib/rootfs/offline_repo.json b/contrib/rootfs/offline_repo.json
index 84a9bfc8f39f5d7c82b274990327898b04626b08..9745d0f4304437124f33f14542726b40951cf653 100644
--- a/contrib/rootfs/offline_repo.json
+++ b/contrib/rootfs/offline_repo.json
@@ -89,21 +89,21 @@
             "tagged": true
         },
         {
-            "pkgname": "linux-image-4.8.1-040801-generic",
+            "pkgname": "linux-image-4.11.0-041100rc2-generic",
             "pkgdescription": "Vanilla Linux Kernel",
             "tagged": false,
             "urls": [
-              "http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.8.1/linux-image-4.8.1-040801-generic_4.8.1-040801.201610071031_amd64.deb",
-              "http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.8.1/linux-image-4.8.1-040801-cloud_4.8.1-040801.201610071031_i386.deb"
+              "http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.11-rc6/linux-image-4.11.0-041100rc6-generic_4.11.0-041100rc6.201704091331_amd64.deb",
+              "http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.11-rc6/linux-image-4.11.0-041100rc6-generic_4.11.0-041100rc6.201704091331_i386.deb"
             ]
         },
         {
-            "pkgname": "linux-headers-4.8.1-040801-generic",
+            "pkgname": "linux-headers-4.11.0-041100rc2-generic",
             "pkgdescription": "Vanilla Linux Kernel Headers",
             "tagged": false,
             "urls": [
-              "http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.8.1/linux-headers-4.8.1-040801-generic_4.8.1-040801.201610071031_arm64.deb",
-              "http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.8.1/linux-headers-4.8.1-040801-generic_4.8.1-040801.201610071031_i386.deb"
+              "http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.11-rc6/linux-headers-4.11.0-041100rc6-generic_4.11.0-041100rc6.201704091331_amd64.deb",
+              "http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.11-rc6/linux-headers-4.11.0-041100rc6-generic_4.11.0-041100rc6.201704091331_i386.deb"
             ]
         }
       ]
@@ -116,18 +116,18 @@
             "tagged": true,
             "hidden": true,
             "urls": [
-              "ftp://ftp.halifax.rwth-aachen.de/debian/pool/main/s/singular/singular_4.0.3-p1+ds-4_amd64.deb",
-              "ftp://ftp.halifax.rwth-aachen.de/debian/pool/main/s/singular/singular_4.0.3-p1+ds-4_i386.deb",
-              "ftp://ftp.halifax.rwth-aachen.de/debian/pool/main/s/singular/singular-ui_4.0.3-p1+ds-4_amd64.deb",
-              "ftp://ftp.halifax.rwth-aachen.de/debian/pool/main/s/singular/singular-ui_4.0.3-p1+ds-4_i386.deb",
-              "ftp://ftp.halifax.rwth-aachen.de/debian/pool/main/s/singular/singular-data_4.0.3-p1+ds-4_all.deb",
-              "ftp://ftp.halifax.rwth-aachen.de/debian/pool/main/s/singular/singular-modules_4.0.3-p1+ds-4_amd64.deb",
-              "ftp://ftp.halifax.rwth-aachen.de/debian/pool/main/s/singular/singular-modules_4.0.3-p1+ds-4_i386.deb",
-              "ftp://ftp.halifax.rwth-aachen.de/debian/pool/main/s/singular/singular-doc_4.0.3-p1+ds-4_all.deb",
-              "ftp://ftp.halifax.rwth-aachen.de/debian/pool/main/s/singular/libsingular4_4.0.3-p1+ds-4_amd64.deb",
-              "ftp://ftp.halifax.rwth-aachen.de/debian/pool/main/s/singular/libsingular4_4.0.3-p1+ds-4_i386.deb",
-              "ftp://ftp.halifax.rwth-aachen.de/debian/pool/main/f/flint/libflint-2.5.2_2.5.2-9_amd64.deb",
-              "ftp://ftp.halifax.rwth-aachen.de/debian/pool/main/f/flint/libflint-2.5.2_2.5.2-9_i386.deb",
+              "ftp://ftp.halifax.rwth-aachen.de/debian/pool/main/s/singular/singular_4.0.3-p3+ds-5_amd64.deb",
+              "ftp://ftp.halifax.rwth-aachen.de/debian/pool/main/s/singular/singular_4.0.3-p3+ds-5_i386.deb",
+              "ftp://ftp.halifax.rwth-aachen.de/debian/pool/main/s/singular/singular-ui_4.0.3-p3+ds-5_amd64.deb",
+              "ftp://ftp.halifax.rwth-aachen.de/debian/pool/main/s/singular/singular-ui_4.0.3-p3+ds-5_i386.deb",
+              "ftp://ftp.halifax.rwth-aachen.de/debian/pool/main/s/singular/singular-data_4.0.3-p3+ds-5_all.deb",
+              "ftp://ftp.halifax.rwth-aachen.de/debian/pool/main/s/singular/singular-modules_4.0.3-p3+ds-5_amd64.deb",
+              "ftp://ftp.halifax.rwth-aachen.de/debian/pool/main/s/singular/singular-modules_4.0.3-p3+ds-5_i386.deb",
+              "ftp://ftp.halifax.rwth-aachen.de/debian/pool/main/s/singular/singular-doc_4.0.3-p3+ds-5_all.deb",
+              "ftp://ftp.halifax.rwth-aachen.de/debian/pool/main/s/singular/libsingular4_4.0.3-p3+ds-5_amd64.deb",
+              "ftp://ftp.halifax.rwth-aachen.de/debian/pool/main/s/singular/libsingular4_4.0.3-p3+ds-5_i386.deb",
+              "ftp://ftp.halifax.rwth-aachen.de/debian/pool/main/f/flint/libflint-2.5.2_2.5.2-15_amd64.deb",
+              "ftp://ftp.halifax.rwth-aachen.de/debian/pool/main/f/flint/libflint-2.5.2_2.5.2-15_i386.deb",
               "ftp://ftp.halifax.rwth-aachen.de/debian/pool/main/n/ntl/libntl27_9.9.1-3_amd64.deb",
               "ftp://ftp.halifax.rwth-aachen.de/debian/pool/main/n/ntl/libntl27_9.9.1-3_i386.deb"
             ]