--- a/debian/patches/reproducible-build.patch	1970-01-01 01:00:00.000000000 +0100
--- b/debian/patches/reproducible-build.patch	2020-11-10 10:16:10.357693628 +0000
@@ -0,0 +1,15 @@
+Description: Make the build reproducible
+Author: Chris Lamb <lamby@debian.org>
+Last-Update: 2020-11-10
+
+--- less.js-3.13.0+dfsg.orig/packages/less/build/banner.js
++++ less.js-3.13.0+dfsg/packages/less/build/banner.js
+@@ -5,7 +5,7 @@ module.exports =
+  * Less - ${ pkg.description } v${ pkg.version }
+  * http://lesscss.org
+  * 
+- * Copyright (c) 2009-${new Date().getFullYear()}, ${ pkg.author.name } <${ pkg.author.email }>
++ * Copyright (c) 2009-${(new Date(process.env.SOURCE_DATE_EPOCH ? (process.env.SOURCE_DATE_EPOCH * 1000) : new Date().getTime())).getFullYear()}, ${ pkg.author.name } <${ pkg.author.email }>
+  * Licensed under the ${ pkg.license } License.
+  *
+  * @license ${ pkg.license }
--- a/debian/patches/series	2020-11-10 10:12:01.127276693 +0000
--- b/debian/patches/series	2020-11-10 10:16:07.205662027 +0000
@@ -1 +1,2 @@
 use-packaged-plugins.patch
+reproducible-build.patch