diff --git a/0_RootFS/Rootfs/build_tarballs.jl b/0_RootFS/Rootfs/build_tarballs.jl
index bc0c173a9e7..fe3e2965d8b 100644
--- a/0_RootFS/Rootfs/build_tarballs.jl
+++ b/0_RootFS/Rootfs/build_tarballs.jl
@@ -5,7 +5,7 @@
 #     select the branch corresponding to the version of Alpine you want to use, browse to
 #     the directory `x86_64` and obtain the permanent link of the image (press `Y`).  NOTE:
 #     if you upgrade version of Alpine Linux, makes sure to use the same version of Musl
-#     libc as upstream (see below), otherwise system application may not work
+#     libc as upstream (see below), otherwise system applications may not work
 #   * version of Meson (https://github.com/mesonbuild/meson/releases)
 #   * version of patchelf (https://github.com/NixOS/patchelf/releases/)
 #   * version of CSL in `bundled/libs/csl/download_csls.sh`
@@ -113,21 +113,21 @@ insert_compiler_shard(name, version, rootfs_squashfs_hash, :squashfs)
 sources = [
     ArchiveSource(rootfs_url, rootfs_hash),
     # Objconv is very useful
-    ArchiveSource("https://github.com/staticfloat/objconv/archive/v2.49.tar.gz",
-                  "5fcdf0eda828fbaf4b3d31ba89b5011f649df3a7ef0cc7520d08fe481cac4e9f"),
+    GitSource("https://github.com/staticfloat/objconv.git",
+              "c68e441d2b93074b01ea193cb17e944ed751750f"), # v2.54
     # As is patchelf
     GitSource("https://github.com/NixOS/patchelf.git",
-              "bf3f37ec29edcdb3e2a163edaf84aeece39f8c9d"), # v0.14.3
+              "99c24238981b7b1084313aca8f5c493bb46f302c"), # v0.18.0
     # We need a very recent version of meson to build gtk stuffs, so let's just grab the latest
-    ArchiveSource("https://github.com/mesonbuild/meson/releases/download/1.0.1/meson-1.0.1.tar.gz",
-                  "d926b730de6f518728cc7c57bc5e701667bae0c3522f9e369427b2cc7839d3c1"),
+    GitSource("https://github.com/mesonbuild/meson.git",
+              "7368795d13081d4928a9ba04d48498ca2442624b"), # v1.3.0
     # We're going to bundle a version of `ldid` into the rootfs for now.  When we split this up,
     # we'll do this in a nicer way by using JLLs directly, but until then, this is what we've got.
-    ArchiveSource("https://github.com/JuliaBinaryWrappers/ldid_jll.jl/releases/download/ldid-v2.1.2%2B0/ldid.v2.1.2.x86_64-linux-musl-cxx11.tar.gz",
-                  "960ebcd32842f81d140293157d90e4e829fd16241bf5b0a23929e4938256a572",
+    ArchiveSource("https://github.com/JuliaBinaryWrappers/ldid_jll.jl/releases/download/ldid-v2.1.3%2B0/ldid.v2.1.3.x86_64-linux-musl-cxx11.tar.gz",
+                  "d37c2a8f5bfb75c6a4b9fafb97160c8065e1281b9fe85ac51557fe490edad142",
                   unpack_target="ldid"),
-    ArchiveSource("https://github.com/JuliaBinaryWrappers/libplist_jll.jl/releases/download/libplist-v2.2.0%2B0/libplist.v2.2.0.x86_64-linux-musl.tar.gz",
-                  "1b02d6fd8b77b71eaf672f15fecd8b38ef1e167baf469399b7d52435c11d414b",
+    ArchiveSource("https://github.com/JuliaBinaryWrappers/libplist_jll.jl/releases/download/libplist-v2.2.1%2B0/libplist.v2.2.1.x86_64-linux-musl-cxx11.tar.gz",
+                  "f881818f288d3a82a1ca98e4a011f44289f2bc8c1ba8cfdafe4f1690af0cf4ae",
                   unpack_target="ldid"),
     # And also our own local patches, utilities, etc...
     DirectorySource("./bundled"),
@@ -163,7 +163,7 @@ NET_TOOLS="curl wget git openssl ca-certificates"
 MISC_TOOLS="python2 python3 py3-pip sudo file libintl patchutils grep zlib"
 FILE_TOOLS="tar zip unzip xz findutils squashfs-tools rsync" # TODO: restore `unrar` when it comes back to Alpine Linux
 INTERACTIVE_TOOLS="bash gdb vim nano tmux strace"
-BUILD_TOOLS="make patch gawk autoconf automake libtool bison flex pkgconfig cmake samurai ccache"
+BUILD_TOOLS="make patch gawk autoconf automake libtool bison flex pkgconfig cmake samurai ccache ninja"
 apk add --update --root $prefix ${NET_TOOLS} ${MISC_TOOLS} ${FILE_TOOLS} ${INTERACTIVE_TOOLS} ${BUILD_TOOLS}
 
 # chgrp and chown should be no-ops since we run in a single-user mode
@@ -243,16 +243,16 @@ for arch in x86_64 i686; do
 done
 
 # Build/install meson
-cd ${WORKSPACE}/srcdir/meson-*/
+cd ${WORKSPACE}/srcdir/meson/
 python3 setup.py build
 python3 setup.py install --prefix=/usr --root="${prefix}"
 
 # Build/install objconv
-cd ${WORKSPACE}/srcdir/objconv*/
+cd ${WORKSPACE}/srcdir/objconv/
 g++ -O2 -o ${prefix}/usr/bin/objconv src/*.cpp
 
 # Build/install patchelf
-cd ${WORKSPACE}/srcdir/patchelf*/
+cd ${WORKSPACE}/srcdir/patchelf/
 ./bootstrap.sh
 ./configure --prefix=${prefix}/usr
 make -j${nproc}