diff --git a/.gitignore b/.gitignore
index e856f83..391e4be 100644
--- a/.gitignore
+++ b/.gitignore
@@ -8,3 +8,4 @@
 /giac-1.2.3.25.tar.gz
 /giac-1.2.3.43.tar.gz
 /giac-1.2.3.49.tar.gz
+/giac-1.2.3.57.tar.gz
diff --git a/giac-makesrc.sh b/giac-makesrc.sh
index 7021855..e3ddc41 100755
--- a/giac-makesrc.sh
+++ b/giac-makesrc.sh
@@ -5,7 +5,7 @@
 #
 
 VERSION="1.2.3"
-VERSIONREV="49"
+VERSIONREV="57"
 
 # The upstream tarball name is: giac"$SOURCEORIG".tar.gz
 SOURCEORIG=_"$VERSION"-"$VERSIONREV"
diff --git a/giac.spec b/giac.spec
index 2427d9d..156010f 100644
--- a/giac.spec
+++ b/giac.spec
@@ -6,12 +6,12 @@ ExcludeArch: aarch64 %{power64} s390x
 # See http://pcm1.e.ujf-grenoble.fr/forum/viewtopic.php?f=19&t=1733&sid=3257f5085f4ae208dc36665f2873252f
 %bcond_with check
 
-%global subversion 49
+%global subversion 57
 
 Name:          giac
 Summary:       Computer Algebra System, Symbolic calculus, Geometry
 Version:       1.2.3
-Release:       7.%{subversion}%{?dist}
+Release:       8.%{subversion}%{?dist}
 # LGPLv3+: src/Fl_GDI_Printer.cxx, src/Flv_List.cc, src/Flv_Table.cc
 # BSD: src/tinymt32*
 License:       GPLv3+
@@ -117,7 +117,7 @@ Summary:   Perl script for the computer algebra system Giac
 URL:       http://melusine.eu.org/syracuse/giac/pgiac
 BuildArch: noarch
 Requires:  %{name} = %{version}-%{release}
-Requires:  perl-interpreter
+Requires:  perl
 
 %description -n pgiac
 The pgiac command is a perl script to mix Latex documents
@@ -408,12 +408,14 @@ make -C check check
 %{_datadir}/giac/examples/
 
 %changelog
+* Thu Jul 27 2017 Antonio Trande <sagitterATfedoraproject.org> 1.2.3-8.57
+- Update to 1.2.3 sub-57
+
 * Wed Jul 26 2017 Fedora Release Engineering <releng@fedoraproject.org> - 1.2.3-7.49
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_27_Mass_Rebuild
 
 * Thu Jul 13 2017 Petr Pisar <ppisar@redhat.com> - 1.2.3-6.49
-- perl dependency renamed to perl-interpreter
-  <https://fedoraproject.org/wiki/Changes/perl_Package_to_Install_Core_Modules>
+- perl dependency renamed to perl-interpreter <https://fedoraproject.org/wiki/Changes/perl_Package_to_Install_Core_Modules>
 
 * Sun Jun 11 2017 Antonio Trande <sagitterATfedoraproject.org> 1.2.3-5.49
 - Update to 1.2.3 sub-49
diff --git a/sources b/sources
index b434ef3..bce4da2 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (giac-1.2.3.49.tar.gz) = bfaf868dc4f828c90d8dccf3938ac0f73323beb57fcc24d326fc68f844d6c133ac496a7f972e33ec3c8000231489e2dd4a34cc3127471d42a2f69c1986a9e71b
+SHA512 (giac-1.2.3.57.tar.gz) = d25569ae41b1a62d0398c92009f0ef99cff60cabfc6f598cee0a26cc4fcdee57f7512e8a897d2f5901b8446c55122cafb1034657a6d77b2431382fcbc7a34e87