diff --git a/srcpkgs/firefox-esr/template b/srcpkgs/firefox-esr/template
index de6e9f56409..5307e8e4421 100644
--- a/srcpkgs/firefox-esr/template
+++ b/srcpkgs/firefox-esr/template
@@ -1,6 +1,6 @@
 # Template build file for 'firefox-esr'.
 pkgname=firefox-esr
-version=52.2.0
+version=52.2.1
 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=a2f180e4109b15d86d58444134996c1d49eb52e7702d89510508fbd7bddb9381
+checksum=8ee3ae10e8e782d867e9164eaed4613783959266fd7d01daf972159ca426efdb
 
 only_for_archs="i686 i686-musl x86_64 x86_64-musl"
 nopie=yes