diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index a7ccabf..3a983f8 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -127,7 +127,7 @@ jobs:
           echo '/opt/procursus/sbin:/opt/procursus/bin' >> $GITHUB_PATH
           PATH=/opt/procursus/sbin:/opt/procursus/bin:$PATH sudo /opt/procursus/bin/apt update
           sudo /opt/procursus/bin/apt -V full-upgrade -y || :
-          sudo /opt/procursus/bin/apt install asciidoc autoconf autoconf-archive automake autopoint bash bison cmake docbook-xml docbook-xsl fakeroot findutils flex file gawk git gnupg gpgrt-tools groff gzip ldid libssl-dev libtool libltdl-dev llvm make ncurses-bin openssl patch pkg-config po4a python3 sed tar triehash wget xz-utils zstd -y
+          sudo /opt/procursus/bin/apt install asciidoc autoconf autoconf-archive automake autopoint bash bison cmake docbook-xml docbook-xsl fakeroot findutils flex file gawk git gnupg gpgrt-tools groff gzip ldid libtool libltdl-dev llvm make ncurses-bin openssl patch pkg-config po4a python3 sed tar triehash wget xz-utils zstd -y
 
       - name: Add Procursus to PATH
         if: steps.binpack_cache.outputs.cache-hit != 'true'
@@ -223,7 +223,7 @@ jobs:
           sudo sed -i.bak -e 's/__UNAVAILABLE_PUBLIC_IOS;/;/g' $(xcrun -sdk iphoneos --show-sdk-path)/System/Library/Frameworks/IOKit.framework/Headers/IOKitLib.h
           ruby -e "File.write(ARGV[0], File.read(ARGV[0]).gsub(ARGV[1]) { ARGV[2] })" $(xcrun -sdk iphoneos --show-sdk-path)/System/Library/Frameworks/IOKit.framework/Headers/IOKitLib.h '__API_DEPRECATED_WITH_REPLACEMENT("kIOMainPortDefault", macos(10.0, 12.0)) __API_UNAVAILABLE(ios, watchos, tvos);' '__API_DEPRECATED_WITH_REPLACEMENT("kIOMainPortDefault", macos(10.0, 12.0)) /*__API_UNAVAILABLE(ios, watchos, tvos)*/;'
           sudo chown $UID:$GID .
-          sudo gmake ramdisk.dmg
+          sudo gmake -j$(sysctl -n hw.ncpu) ramdisk.dmg
 
       - name: Upload ramdisk
         uses: actions/upload-artifact@v3
diff --git a/src/binpack b/src/binpack
index 815e866..dc0ef64 160000
--- a/src/binpack
+++ b/src/binpack
@@ -1 +1 @@
-Subproject commit 815e866ac2ccb1df80f9e9e401593d591cafab31
+Subproject commit dc0ef6423cb3d7991433133c1b6601c2f1c2a1e9