diff --git a/.gitignore b/.gitignore
index 058efd4..0557419 100644
--- a/.gitignore
+++ b/.gitignore
@@ -24,3 +24,4 @@
 /giac-1.6.0.7.tar.gz
 /giac-1.6.0.25.tar.gz
 /giac-1.7.0.1.tar.gz
+/giac-1.7.0.13.tar.gz
diff --git a/giac-makesrc.sh b/giac-makesrc.sh
index f52a4e9..f5b27d1 100755
--- a/giac-makesrc.sh
+++ b/giac-makesrc.sh
@@ -5,7 +5,7 @@
 #
 
 VERSION="1.7.0"
-VERSIONREV="1"
+VERSIONREV="13"
 
 # The upstream tarball name is: giac"$SOURCEORIG".tar.gz
 SOURCEORIG=_"$VERSION"-"$VERSIONREV"
diff --git a/giac.spec b/giac.spec
index c93005b..c2f8d2b 100644
--- a/giac.spec
+++ b/giac.spec
@@ -7,7 +7,7 @@
 # giac does not support LTO
 %define _lto_cflags %{nil}
 
-%global subversion .1
+%global subversion .13
 
 Name:          giac
 Summary:       Computer Algebra System, Symbolic calculus, Geometry
@@ -439,6 +439,9 @@ make -C check check
 %{_datadir}/giac/examples/
 
 %changelog
+* Sat Jun 12 2021 Antonio Trande <sagitter@fedoraproject.org> 1.7.0.13-1
+- Update to 1.7.0 sub-13
+
 * Thu Mar 25 2021 Antonio Trande <sagitter@fedoraproject.org> 1.7.0.1-1
 - Update to 1.7.0 sub-1
 - Remove wasm file with bad magic number
diff --git a/sources b/sources
index 3c4533e..c5af503 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (giac-1.7.0.1.tar.gz) = 371860e5d77436d36dcaf81c7a706a390b0987f427ae929d021cbc243b9899fea75723d56eedecb335437a5c9278301a3dde3d265fa223d69867d4ff99e1e574
+SHA512 (giac-1.7.0.13.tar.gz) = d173e3b5fb35bd516e58882d6a77829b8b202cf1c3b346418e237e2afbb1a310e9407b8174c708aeecdb5950dc38560ac2390ad2ad7995fdedbd85114bb310b4