diff --git a/srcpkgs/firefox-esr/template b/srcpkgs/firefox-esr/template
index 549cda9b9b5..7e4c5c6bf43 100644
--- a/srcpkgs/firefox-esr/template
+++ b/srcpkgs/firefox-esr/template
@@ -1,6 +1,6 @@
 # Template file for 'firefox-esr'
 pkgname=firefox-esr
-version=52.5.3
+version=52.6.0
 revision=1
 wrksrc="firefox-${version}esr"
 short_desc="Mozilla Firefox web browser - Extended Support Release (ESR)"
@@ -8,7 +8,7 @@ maintainer="Eivind Uggedal <eivind@uggedal.com>"
 homepage="https://www.mozilla.org/firefox/"
 license="MPL-2.0, GPL-2, LGPL-2.1"
 distfiles="${MOZILLA_SITE}/firefox/releases/${version}esr/source/firefox-${version}esr.source.tar.xz"
-checksum=e42fba89277aceafc11475c237067e027b78193d8e7b07519a75ea0036b49c55
+checksum=587cd94a315f5a94bf5c1f85e4a0ea92c9103503b51d649a3c4a4a122d691e42
 
 lib32disabled=yes