diff --git a/srcpkgs/firefox-esr/template b/srcpkgs/firefox-esr/template
index 406199b69ca..e48b2f115f2 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=45.2.0
+version=45.3.0
 revision=1
 wrksrc="firefox-${version}esr"
 short_desc="Lightweight gecko-based web browser"
@@ -8,7 +8,7 @@ maintainer="Eivind Uggedal <eivind@uggedal.com>"
 homepage="https://www.mozilla.org/en-US/firefox/organizations/"
 license="MPL-1.1, GPL-2, LGPL-2.1"
 distfiles="${MOZILLA_SITE}/firefox/releases/${version}esr/source/firefox-${version}esr.source.tar.xz"
-checksum=1a729774034231c919dc5a556e17d3342792d5347c755d8d0a4f67a07374804b
+checksum=922233c65c0aabd05371974c289495119c28d72fc7f8b06a22b58c5f70f8b8f7
 
 only_for_archs="i686 i686-musl x86_64 x86_64-musl"
 nopie=yes