diff --git a/srcpkgs/firefox-esr/template b/srcpkgs/firefox-esr/template
index 5bc193b1496..eb66fe17cc8 100644
--- a/srcpkgs/firefox-esr/template
+++ b/srcpkgs/firefox-esr/template
@@ -3,7 +3,7 @@
 # THIS PKG MUST BE SYNCHRONIZED WITH "srcpkgs/firefox-esr-i18n".
 #
 pkgname=firefox-esr
-version=78.4.1
+version=78.5.0
 revision=1
 wrksrc="firefox-${version}"
 build_helper="rust qemu"
@@ -22,7 +22,7 @@ maintainer="Jürgen Buchmüller <pullmoll@t-online.de>"
 license="MPL-2.0, GPL-2.0-or-later, LGPL-2.1-or-later"
 homepage="https://www.mozilla.org/firefox/organizations/"
 distfiles="${MOZILLA_SITE}/firefox/releases/${version}esr/source/firefox-${version}esr.source.tar.xz"
-checksum=1978eedd975b1cf95bd4a04b2381560d1ad9a4223032717f23fac26e3458a760
+checksum=51f54ff608aa09de07b304307581ae89112781597322b8999b3099cfabf48290
 lib32disabled=yes
 conflicts="firefox>=0"