diff --git a/REPO b/REPO
index 3710c6b..052c7ac 100644
--- a/REPO
+++ b/REPO
@@ -84,9 +84,9 @@ f:64f65d73f9ddfd4cd4f2eb732a8c6e56:python3-agate-dbf/.footprint
 f:7f8947359f0a442b966d6a086b51dc55:bogofilter/.signature
 f:5638a910d729af1d01ab108de0d90b69:bogofilter/Pkgfile
 f:1b035191b968ec08fc4b35c0d7a157f7:bogofilter/.footprint
-f:3a5172794cd3bb18a4dd2080a86986cd:arpack/.signature
-f:fc0ab5a88b517a0c99fd949952aa4392:arpack/Pkgfile
-f:8d0413724cd93f06c5014c5efdf75700:arpack/.footprint
+f:c5f8811c9c8679ed3be47c51fa51a262:arpack/.signature
+f:a17a33b4138a699110611af5576c7343:arpack/Pkgfile
+f:9029dfaa99778103e5b5acaacf33d152:arpack/.footprint
 f:86cb9b64f123f8fa8fce2f6aebff75b6:python3-pytimeparse/.signature
 f:54fe456e4066480a395211a1d4838179:python3-pytimeparse/Pkgfile
 f:25ab755226086d18a17cb559b05cf95b:python3-pytimeparse/.footprint
@@ -135,8 +135,8 @@ f:c1d50dffa63b8b9b704da2922a49aac4:wildmidi/.footprint
 f:bb2005839fa7dbbeef50fd42fc73de39:python3-agate-sql/.signature
 f:313638232f7e4613e0ce825870289f8a:python3-agate-sql/Pkgfile
 f:bd753741423d4f6175355ace4b6b88e6:python3-agate-sql/.footprint
-f:d633cf426ab55ed0f3d99177b54000ad:lagrange/.signature
-f:dc48a6312fc1cbed3f02c0b536976c9c:lagrange/Pkgfile
+f:e14674c940ffa7f3efad12a3a8c3f194:lagrange/.signature
+f:61d47d8d2148d1244fe711d5e1f4bce1:lagrange/Pkgfile
 f:9c7e59eb32e7c3b4a2622ff6a6350889:lagrange/.footprint
 f:6b1ea891a0673f774ddad167cd59c3ac:xxd-standalone/.signature
 f:f85e9fbe0966cf8449b616679f468901:xxd-standalone/Pkgfile
@@ -269,9 +269,9 @@ f:2f41be86580cddce4278e99f8867dc89:python3-leather/.footprint
 f:81f43ff541b9a5202c14d8058d6acfa3:portaudio/.signature
 f:1816e3470fd6a219a1c993461c9b6e6b:portaudio/Pkgfile
 f:c024e9a936e682c2d1cd370d7df144c0:portaudio/.footprint
-f:4b926ddaec667584b24caee4783639a8:python3-agate/.signature
-f:b2b808dd3d4c08e11e50791e42e9e6b3:python3-agate/Pkgfile
-f:582f79b1b5567aab372ca873d71026f0:python3-agate/.footprint
+f:6de07feb9da12922b23385c54e597de4:python3-agate/.signature
+f:d0e502bb596f2b04c224f96c631d0c87:python3-agate/Pkgfile
+f:dcfee2abe76905a89c93a45ae1d8e6a8:python3-agate/.footprint
 f:966dd6a0f0d6c91c99f92ad91a9bffc5:gl2ps/.signature
 f:aa6c9534b6d4e68b9864d5d9f63bf0ec:gl2ps/Pkgfile
 f:aa56dda5637db25cffd60e5bfb1a6f52:gl2ps/.footprint
diff --git a/arpack/.footprint b/arpack/.footprint
index 41f2635..1cc0e75 100644
--- a/arpack/.footprint
+++ b/arpack/.footprint
@@ -1,12 +1,12 @@
 drwxr-xr-x	root/root	usr/
 drwxr-xr-x	root/root	usr/include/
-drwxr-xr-x	root/root	usr/include/arpack-ng/
--rw-r--r--	root/root	usr/include/arpack-ng/arpackdef.h
--rw-r--r--	root/root	usr/include/arpack-ng/arpackicb.h
--rw-r--r--	root/root	usr/include/arpack-ng/debug.h
--rw-r--r--	root/root	usr/include/arpack-ng/debugF90.h
--rw-r--r--	root/root	usr/include/arpack-ng/stat.h
--rw-r--r--	root/root	usr/include/arpack-ng/statF90.h
+drwxr-xr-x	root/root	usr/include/arpack/
+-rw-r--r--	root/root	usr/include/arpack/arpackdef.h
+-rw-r--r--	root/root	usr/include/arpack/arpackicb.h
+-rw-r--r--	root/root	usr/include/arpack/debug.h
+-rw-r--r--	root/root	usr/include/arpack/debugF90.h
+-rw-r--r--	root/root	usr/include/arpack/stat.h
+-rw-r--r--	root/root	usr/include/arpack/statF90.h
 drwxr-xr-x	root/root	usr/lib/
 drwxr-xr-x	root/root	usr/lib/cmake/
 drwxr-xr-x	root/root	usr/lib/cmake/arpackng/
diff --git a/arpack/.signature b/arpack/.signature
index 535e08c..6692aef 100644
--- a/arpack/.signature
+++ b/arpack/.signature
@@ -1,5 +1,5 @@
 untrusted comment: verify with /etc/ports/jmq.pub
-RWTTPlFarK9CxHahStD9iyglXXjBFxfekP2ouwxTZyRgamXq+97Xk9OXV08hzmeoMgcxu4OuwrmhaPGmXxVKhkZo1YZ93+tCMgg=
-SHA256 (Pkgfile) = f4d876290b2d284146e94205ae569c4ff55f2ed64c4179c17c6041c0cdd96ce5
-SHA256 (.footprint) = 8e5254dd79506227383f0a7cfa2ed5a3caf9bfebb359237538a3d7c058e2723d
-SHA256 (arpack-3.9.0.tar.gz) = 24f2a2b259992d3c797d80f626878aa8e2ed5009d549dad57854bbcfb95e1ed0
+RWTTPlFarK9CxL3RdWg2F5iR5UiLnwIIU3hexp2Y3YjB5T3FiP7yJO+3bj1EZ7obmr71DvSxybk2jXCgICPOBBmouqnVIwT/0gA=
+SHA256 (Pkgfile) = 95761456856e4cb8f1352317df08e5db557c4a70ff5492bc3cca04ceadb5d1d7
+SHA256 (.footprint) = 5381b7b22b779e79a35d9920d629f7a33454414cec2473b4d18697e79075a787
+SHA256 (arpack-3.9.1.tar.gz) = f6641deb07fa69165b7815de9008af3ea47eb39b2bb97521fbf74c97aba6e844
diff --git a/arpack/Pkgfile b/arpack/Pkgfile
index e6174eb..439ecc3 100644
--- a/arpack/Pkgfile
+++ b/arpack/Pkgfile
@@ -5,25 +5,22 @@
 # Optional: openmpi
 
 name=arpack
-version=3.9.0
+version=3.9.1
 release=1
-source=(https://github.com/opencollab/arpack-ng/archive/refs/tags/$version.tar.gz)
-renames=($name-$version.tar.gz)
+source=(https://github.com/opencollab/arpack-ng/archive/$version/$name-$version.tar.gz)
 
 build() {
-  mkdir build && cd build
-
   prt-get isinst openmpi && ARPACK_MPI="on" || ARPACK_MPI="off"
 
-  cmake -DCMAKE_BUILD_TYPE=Release \
-	-DCMAKE_INSTALL_PREFIX=/usr \
-	-DCMAKE_INSTALL_LIBDIR=lib \
-	-DCMAKE_C_FLAGS_RELEASE="$CFLAGS -fPIC" \
-	-DCMAKE_Fortran_FLAGS="$CFLAGS -fPIC" \
-	-DBUILD_SHARED_LIBS=on \
-	-DEXAMPLES=off -DMPI=$ARPACK_MPI \
-	../$name-ng-$version
+  cmake -S $name-ng-$version -B build -G Ninja \
+        -DCMAKE_BUILD_TYPE=Release \
+        -DCMAKE_INSTALL_PREFIX=/usr \
+        -DCMAKE_INSTALL_LIBDIR=lib \
+        -DCMAKE_C_FLAGS_RELEASE="$CFLAGS -fPIC" \
+        -DCMAKE_Fortran_FLAGS="$CFLAGS -fPIC" \
+        -DBUILD_SHARED_LIBS=on \
+        -DEXAMPLES=off -DMPI=$ARPACK_MPI
 
-  cmake --build .
-  make DESTDIR=$PKG install
+  ninja -C build -j ${JOBS:-1}
+  DESTDIR=$PKG ninja -C build install
 }