diff --git a/srcpkgs/firefox-esr/template b/srcpkgs/firefox-esr/template
index 7d5b742eb30..b9cb667b7f8 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=52.8.1
+version=52.9.0
 revision=1
 wrksrc="firefox-${version}esr"
 short_desc="Mozilla Firefox web browser - Extended Support Release (ESR)"
@@ -11,7 +11,7 @@ maintainer="Eivind Uggedal <eivind@uggedal.com>"
 homepage="https://www.mozilla.org/firefox/organizations/"
 license="MPL-2.0, GPL-2.0-or-later, LGPL-2.1-or-later"
 distfiles="${MOZILLA_SITE}/firefox/releases/${version}esr/source/firefox-${version}esr.source.tar.xz"
-checksum=487b4b7fe9a4aeb4dfd63991030b5df47d73f7a17ef917ba1036055f0049cf7b
+checksum=c01d09658c53c1b3a496e353a24dad03b26b81d3b1d099abc26a06f81c199dd6
 
 lib32disabled=yes
 hostmakedepends="autoconf213 unzip zip pkg-config perl python yasm