diff -Nru 9base-6/debian/changelog 9base-6/debian/changelog
--- 9base-6/debian/changelog	2020-07-26 00:06:24.000000000 +0000
+++ 9base-6/debian/changelog	2021-02-28 08:30:20.000000000 +0000
@@ -1,3 +1,11 @@
+9base (1:6-11) unstable; urgency=medium
+
+  * QA upload.
+  * Add upstream sha1sum patch (Closes: #983017)
+  * bump policy version (no changes)
+
+ -- Jochen Sprickerhof <jspricke@debian.org>  Sun, 28 Feb 2021 09:30:20 +0100
+
 9base (1:6-10) unstable; urgency=medium
 
   * QA upload.
diff -Nru 9base-6/debian/control 9base-6/debian/control
--- 9base-6/debian/control	2020-07-26 00:06:24.000000000 +0000
+++ 9base-6/debian/control	2021-02-28 08:27:21.000000000 +0000
@@ -3,7 +3,7 @@
 Priority: optional
 Build-Depends: debhelper-compat (= 13)
 Maintainer: Debian QA Group <packages@qa.debian.org>
-Standards-Version: 4.5.0
+Standards-Version: 4.5.1
 Rules-Requires-Root: no
 Homepage: https://tools.suckless.org/9base/
 Vcs-Git: https://salsa.debian.org/debian/9base.git
diff -Nru 9base-6/debian/patches/0010-applied-Alexander-Clouter-s-9base-sha1sum-patch.patch 9base-6/debian/patches/0010-applied-Alexander-Clouter-s-9base-sha1sum-patch.patch
--- 9base-6/debian/patches/0010-applied-Alexander-Clouter-s-9base-sha1sum-patch.patch	1970-01-01 00:00:00.000000000 +0000
+++ 9base-6/debian/patches/0010-applied-Alexander-Clouter-s-9base-sha1sum-patch.patch	2021-02-28 08:15:00.000000000 +0000
@@ -0,0 +1,21 @@
+From: Anselm R Garbe <garbeam@gmail.com>
+Date: Thu, 16 Jun 2016 10:02:58 +0200
+Subject: applied Alexander Clouter's 9base sha1sum patch
+
+---
+ sha1sum/sha1sum.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/sha1sum/sha1sum.c b/sha1sum/sha1sum.c
+index d8c449f..3ebf850 100644
+--- a/sha1sum/sha1sum.c
++++ b/sha1sum/sha1sum.c
+@@ -12,7 +12,7 @@ digestfmt(Fmt *fmt)
+ 
+ 	p = va_arg(fmt->args, uchar*);
+ 	for(i=0; i<SHA1dlen; i++)
+-		sprint(buf+2*i, "%.2ux", p[i]);
++		sprint(buf+2*i, "%.2x", p[i]);
+ 	return fmtstrcpy(fmt, buf);
+ }
+ 
diff -Nru 9base-6/debian/patches/series 9base-6/debian/patches/series
--- 9base-6/debian/patches/series	2020-07-26 00:06:24.000000000 +0000
+++ 9base-6/debian/patches/series	2021-02-28 08:15:00.000000000 +0000
@@ -7,3 +7,4 @@
 0007-troff-Make-the-9-macro-point-to-a-useful-location.patch
 0008-rc-Default-to-a-traditional-prompt.patch
 0009-fix-non-verbose-build.patch
+0010-applied-Alexander-Clouter-s-9base-sha1sum-patch.patch