diff --git a/firefox.spec b/firefox.spec
index f18da5e..2a9325a 100644
--- a/firefox.spec
+++ b/firefox.spec
@@ -176,7 +176,7 @@ ExcludeArch: armv7hl
 Summary:        Mozilla Firefox Web browser
 Name:           firefox
 Version:        87.0
-Release:        5%{?pre_tag}%{?dist}
+Release:        6%{?pre_tag}%{?dist}
 URL:            https://www.mozilla.org/firefox/
 License:        MPLv1.1 or GPLv2+ or LGPLv2+
 Source0:        https://archive.mozilla.org/pub/firefox/releases/%{version}%{?pre_version}/source/firefox-%{version}%{?pre_version}.source.tar.xz
@@ -1080,6 +1080,9 @@ gtk-update-icon-cache %{_datadir}/icons/hicolor &>/dev/null || :
 #---------------------------------------------------------------------
 
 %changelog
+* Tue Mar 30 2021 Jonathan Wakely <jwakely@redhat.com> - 87.0-6
+- Rebuilt for removed libstdc++ symbol (#1937698)
+
 * Tue Mar 30 2021 Martin Stransky <stransky@redhat.com> - 87.0-5
 - Reftest fix