diff --git a/srcpkgs/pari-seadata-small b/srcpkgs/pari-seadata-small
new file mode 120000
index 00000000000..31955146746
--- /dev/null
+++ b/srcpkgs/pari-seadata-small
@@ -0,0 +1 @@
+pari-seadata
\ No newline at end of file
diff --git a/srcpkgs/pari-seadata/template b/srcpkgs/pari-seadata/template
index 3c836eafc15..e0221e5fd7b 100644
--- a/srcpkgs/pari-seadata/template
+++ b/srcpkgs/pari-seadata/template
@@ -1,17 +1,33 @@
 # Template file for 'pari-seadata'
 pkgname=pari-seadata
 version=20090618
-revision=3
+revision=4
 create_wrksrc=yes
-depends="pari"
-short_desc="PARI/GP package needed by ellap for large primes up to 750 bit"
-maintainer="André Cerqueira <acerqueira021@gmail.com>"
-license="GPL-3.0-or-later"
-homepage="http://pari.math.u-bordeaux.fr/packages.html"
-distfiles="http://pari.math.u-bordeaux.fr/pub/pari/packages/seadata.tgz"
+depends="pari-seadata-small"
+short_desc="PARI/GP package needed by ellap for large primes up to 750 bits"
+maintainer="Gonzalo Tornaría <tornaria@cmat.edu.uy>"
+license="GPL-2.0-or-later"
+homepage="https://pari.math.u-bordeaux.fr/packages.html"
+distfiles="https://pari.math.u-bordeaux.fr/pub/pari/packages/${pkgname#pari-}.tgz>${pkgname}-${version}.tar.gz"
 checksum=c9282a525ea3f92c1f9c6c69e37ac5a87b48fb9ccd943cfd7c881a3851195833
 
-do_install() {
- vmkdir usr/share/pari/seadata
- vcopy data/seadata/sea* usr/share/pari/seadata
+do_build() {
+	# compressed data files work ok (install-size: 40M -> 19M)
+	find data -type f -size +4k -print0 | xargs -0 gzip -9
+}
+
+do_install() {
+	vmkdir usr/share/pari
+	vcopy "data/*" usr/share/pari
+}
+
+pari-seadata-small_package() {
+	short_desc="PARI/GP package needed by ellap for large primes up to 350 bits"
+	pkg_install() {
+		# much smaller version suitable for primes up to 350 bits.
+		# identical to seadata-small.tgz in pari packages (668k)
+		vmove usr/share/pari/seadata/sea2
+		vmove usr/share/pari/seadata/sea0.gz
+		vmove usr/share/pari/seadata/README
+	}
 }
diff --git a/srcpkgs/pari-seadata/update b/srcpkgs/pari-seadata/update
new file mode 100644
index 00000000000..bea0b3258ee
--- /dev/null
+++ b/srcpkgs/pari-seadata/update
@@ -0,0 +1,3 @@
+site="http://pari.math.u-bordeaux.fr/pub/pari/packages/"
+pattern="href=\"${pkgname#pari-}.t(ar|gz)\".*\K\d\d\d\d-\d\d-\d\d(?= \d\d:\d\d )"
+version=${version:0:4}.${version:4:2}.${version:6:2}