diff --git a/glibc.spec b/glibc.spec
index 3201b99..1522183 100644
--- a/glibc.spec
+++ b/glibc.spec
@@ -1,6 +1,6 @@
-%define glibcsrcdir glibc-2.27.9000-487-gf2857da7cd
+%define glibcsrcdir glibc-2.27.9000-497-gf496b28e61
 %define glibcversion 2.27.9000
-%define glibcrelease 25%{?dist}
+%define glibcrelease 26%{?dist}
 # Pre-release tarballs are pulled in from git using a command that is
 # effectively:
 #
@@ -1857,6 +1857,10 @@ fi
 %endif
 
 %changelog
+* Thu Jun 21 2018 Florian Weimer <fweimer@redhat.com> - 2.27.9000-26
+- Auto-sync with upstream branch master,
+  commit f496b28e61d0342f579bf794c71b80e9c7d0b1b5.
+
 * Mon Jun 18 2018 Florian Weimer <fweimer@redhat.com> - 2.27.9000-25
 - Auto-sync with upstream branch master,
   commit f2857da7cdb65bfad75ee30981f5b2fde5bbb1dc.
diff --git a/sources b/sources
index 71a07ac..59e11bf 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (glibc-2.27.9000-487-gf2857da7cd.tar.gz) = 4303167ce4a5a66e9c587238b4f96681197e114b23a0da5a71f0e37a3593e6580d11e07653e66f9448aec0f326a5962bb2c0fb544cedf4ee107102141651ec81
+SHA512 (glibc-2.27.9000-497-gf496b28e61.tar.gz) = 40f978b92792a3f084d8f22cf74f9331a4b70da30ad83f7e498046e83f325781082ae5a41c03f2ad10b7352f7fd506034636e49d4d62d95f551d0b2523537d7c