diff -Nru x13as-1.1-B39/debian/changelog x13as-1.1-B39/debian/changelog
--- x13as-1.1-B39/debian/changelog	2020-03-22 16:03:35.000000000 +0000
+++ x13as-1.1-B39/debian/changelog	2020-07-24 10:56:44.000000000 +0000
@@ -1,8 +1,10 @@
-x13as (1.1-B39-1build1) focal; urgency=medium
+x13as (1.1-B39-2) unstable; urgency=medium
 
-  * No-change rebuild for libgcc-s1 package name change.
+  * Add -std=legacy to FFLAGS, needed since gfortran 10 (Closes: #966125)
+  * Bump to debhelper 13
+  * Bump S-V to 4.5.0
 
- -- Matthias Klose <doko@ubuntu.com>  Sun, 22 Mar 2020 17:03:35 +0100
+ -- Sébastien Villemot <sebastien@debian.org>  Fri, 24 Jul 2020 12:56:44 +0200
 
 x13as (1.1-B39-1) unstable; urgency=medium
 
diff -Nru x13as-1.1-B39/debian/control x13as-1.1-B39/debian/control
--- x13as-1.1-B39/debian/control	2018-11-13 13:28:53.000000000 +0000
+++ x13as-1.1-B39/debian/control	2020-07-24 10:55:37.000000000 +0000
@@ -3,9 +3,9 @@
 Uploaders: Sébastien Villemot <sebastien@debian.org>
 Section: non-free/science
 Priority: optional
-Build-Depends: debhelper-compat (= 11),
+Build-Depends: debhelper-compat (= 13),
                gfortran
-Standards-Version: 4.2.1
+Standards-Version: 4.5.0
 Vcs-Browser: https://salsa.debian.org/science-team/x13as
 Vcs-Git: https://salsa.debian.org/science-team/x13as.git
 Homepage: https://www.census.gov/srd/www/x13as/
diff -Nru x13as-1.1-B39/debian/rules x13as-1.1-B39/debian/rules
--- x13as-1.1-B39/debian/rules	2018-11-13 13:28:53.000000000 +0000
+++ x13as-1.1-B39/debian/rules	2020-07-24 10:55:27.000000000 +0000
@@ -1,5 +1,8 @@
 #!/usr/bin/make -f
 
+# Needed to compile with gfortran 10, see #966125
+DEB_FFLAGS_MAINT_APPEND := -std=legacy
+
 include /usr/share/dpkg/buildflags.mk
 
 ifeq (,$(filter parallel=%,$(DEB_BUILD_OPTIONS)))