diff --git a/srcpkgs/giac/patches/missing-const.patch b/srcpkgs/giac/patches/missing-const.patch
deleted file mode 100644
index c562f04ed3e..00000000000
--- a/srcpkgs/giac/patches/missing-const.patch
+++ /dev/null
@@ -1,11 +0,0 @@
---- a/src/Graph.cc	2023-05-24 04:52:40.000000000 -0300
-+++ b/src/Graph.cc	2023-10-06 19:13:38.465374812 -0300
-@@ -138,7 +138,7 @@
-     ++counter;
-     int bs=gr->size_border;
-     if (0 && (scale<=1 || scale>16)){
--      unsigned char *rows[bs];
-+      const unsigned char *rows[bs];
-       for (int i=0; i<bs; i++) {
-         rows[i] = gr->data[i];
-       }
diff --git a/srcpkgs/giac/template b/srcpkgs/giac/template
index 8f1435d0d5f..0a0c57b664f 100644
--- a/srcpkgs/giac/template
+++ b/srcpkgs/giac/template
@@ -1,6 +1,6 @@
 # Template file for 'giac'
 pkgname=giac
-version=1.9.0.69
+version=1.9.0.73
 revision=1
 build_style=gnu-configure
 configure_args="--disable-micropy --disable-quickjs"
@@ -15,7 +15,7 @@ license="GPL-3.0-or-later"
 homepage="https://www-fourier.ujf-grenoble.fr/~parisse/giac.html"
 changelog="https://www-fourier.ujf-grenoble.fr/~parisse/install_en#new"
 distfiles="https://www-fourier.ujf-grenoble.fr/~parisse/debian/dists/stable/main/source/giac_${version%.*}-${version##*.}.tar.gz"
-checksum=3cc1de5d19896d8da9a71da632264937901d5d4047f159bf9450b5ea5fe6d9c8
+checksum=67c4524f730fb3869857e8bd68d00c337a11bb1cb8f5115b739955957f46d62b
 
 # need more than 4*65536 stack, see try_parse() in gen.cc line 11812
 LDFLAGS="-Wl,-z,stack-size=2097152"
@@ -71,7 +71,7 @@ libgiac_package() {
 
 giac-devel_package() {
 	short_desc+=" - development files"
-	depends="${sourcepkg}>=${version}_${revision} $makedepends"
+	depends="${sourcepkg}>=${version}_${revision} gmp-devel"
 	pkg_install() {
 		vmove usr/include
 		vmove "usr/lib/*.a"