diff --git a/dev-lang/algol68g/algol68g-2.8.5.recipe b/dev-lang/algol68g/algol68g-2.8.4.recipe
similarity index 89%
rename from dev-lang/algol68g/algol68g-2.8.5.recipe
rename to dev-lang/algol68g/algol68g-2.8.4.recipe
index f64c58b88..f5c3986ee 100644
--- a/dev-lang/algol68g/algol68g-2.8.5.recipe
+++ b/dev-lang/algol68g/algol68g-2.8.4.recipe
@@ -5,9 +5,9 @@ language."
 HOMEPAGE="https://jmvdveer.home.xs4all.nl/en.algol-68-genie.html"
 COPYRIGHT="2001-2018 J. Marcel van der Veer"
 LICENSE="GNU LGPL v3"
-REVISION="2"
-SOURCE_URI="https://jmvdveer.home.xs4all.nl/algol68g-$portVersion.tar.gz"
-CHECKSUM_SHA256="0f757c64a8342fe38ec501bde68b61d26d051dffd45742ca58b7288a99c7e2d8"
+REVISION="1"
+SOURCE_URI="https://github.com/NevilleDNZ/algol68g/archive/refs/tags/$portVersion.tar.gz"
+CHECKSUM_SHA256="2c32281be43398508113110138807ed574bad5741e63f070fbf508b10d14d3d3"
 SOURCE_URI_2="http://downloads.sourceforge.net/project/algol68/algol68g/algol68g-2.0.0/a68g-doc.pdf#noarchive"
 CHECKSUM_SHA256_2="064b6761207d937aa704d245fc871a072f5a33ea23a346cb136ec8b2078ea321"
 PATCHES="algol68g-$portVersion.patchset"
@@ -41,7 +41,7 @@ BUILD_REQUIRES="
 	devel:libgslcblas$secondaryArchSuffix
 	devel:libncurses$secondaryArchSuffix
 	devel:libplot$secondaryArchSuffix
-	devel:libpq$secondaryArchSuffix
+	devel:libpq$secondaryArchSuffix >= 16
 	"
 BUILD_PREREQUIRES="
 	cmd:aclocal
diff --git a/dev-lang/algol68g/patches/algol68g-2.8.5.patchset b/dev-lang/algol68g/patches/algol68g-2.8.4.patchset
similarity index 100%
rename from dev-lang/algol68g/patches/algol68g-2.8.5.patchset
rename to dev-lang/algol68g/patches/algol68g-2.8.4.patchset