diff --git a/pipelines/main/launch_unsigned_builders.yml b/pipelines/main/launch_unsigned_builders.yml
index 28e0a9cff..dc6087fe3 100644
--- a/pipelines/main/launch_unsigned_builders.yml
+++ b/pipelines/main/launch_unsigned_builders.yml
@@ -26,7 +26,7 @@ steps:
       #buildkite-agent pipeline upload .buildkite/pipelines/main/misc/sanitizers.yml
 
       # Launch all of the platform jobs.
-      #bash .buildkite/utilities/platforms/platforms.sh .buildkite/pipelines/main/platforms/package_linux.arches .buildkite/pipelines/main/platforms/package_linux.yml
+      bash .buildkite/utilities/platforms/platforms.sh .buildkite/pipelines/main/platforms/package_linux.arches .buildkite/pipelines/main/platforms/package_linux.yml
       #bash .buildkite/utilities/platforms/platforms.sh .buildkite/pipelines/main/platforms/tester_linux.arches .buildkite/pipelines/main/platforms/tester_linux.yml
 
       # Launch the `whitespace` job last. Uploading it last actually causes it to start
diff --git a/pipelines/main/platforms/package_linux.arches b/pipelines/main/platforms/package_linux.arches
index dec82f530..b9d369c9d 100644
--- a/pipelines/main/platforms/package_linux.arches
+++ b/pipelines/main/platforms/package_linux.arches
@@ -1,7 +1,7 @@
 # PLATFORM    LABEL       GROUP    ALLOW_FAIL    ARCH        ARCH_ROOTFS    MAKE_FLAGS     TIMEOUT_BK    TIMEOUT_RR     RETRIES    IS_RR    IS_ST    IS_MT    ROOTFS_TAG    ROOTFS_HASH
-linux         32          .        .             32          i686           .              .             .              .          .        .        .        v4.8          b6dffc772ab4c2cd7fd4f83459308f6f0d89b957
-linux         64          .        .             64          x86_64         .              .             .              .          .        .        .        v4.8          2a058481b567f0e91b9aa3ce4ad4f09e6419355a
+# linux       32          .        .             32          i686           .              .             .              .          .        .        .        v4.8          b6dffc772ab4c2cd7fd4f83459308f6f0d89b957
+linux         64          .        .             64          x86_64         .              .             .              .          .        .        .        v5.1          f689ba6acab6c13a3da4ff62e3445dd61c3b5ab0
 # linux       aarch64     .        .             aarch64     aarch64        .              .             .              .          .        .        .        ....          ........................................
 # linux       armv7l      .        .             armv7l      armv7l         .              .             .              .          .        .        .        ....          ........................................
 # linux       ppc64le     .        .             ppc64le     powerpc64le    .              .             .              .          .        .        .        ....          ........................................
-musl          64          .        .             64          x86_64         .              .             .              .          .        .        .        v4.8          d13a47c87c38005bd5d97132e51789cafd852f90
+# musl        64          .        .             64          x86_64         .              .             .              .          .        .        .        v4.8          d13a47c87c38005bd5d97132e51789cafd852f90