diff --git a/glibc.spec b/glibc.spec
index 026f409..a26634c 100644
--- a/glibc.spec
+++ b/glibc.spec
@@ -1,6 +1,6 @@
-%define glibcsrcdir glibc-2.28.9000-551-g2ef4271688
+%define glibcsrcdir glibc-2.28.9000-564-g008b598e2a
 %define glibcversion 2.28.9000
-%define glibcrelease 30%{?dist}
+%define glibcrelease 31%{?dist}
 # Pre-release tarballs are pulled in from git using a command that is
 # effectively:
 #
@@ -1906,6 +1906,14 @@ fi
 %files -f compat-libpthread-nonshared.filelist -n compat-libpthread-nonshared
 
 %changelog
+* Wed Jan 16 2019 Carlos O'Donell <carlos@redhat.com> - 2.28.9000-31
+- Auto-sync with upstream branch master,
+  commit 008b598e2a495024f9777006716cfd8668f3db33.
+- x86-64: Optimize strcat/strncat, strcpy/strncpy and stpcpy/stpncpy with AVX2
+- powerpc: Fix VSCR position in ucontext (swbz#24088)
+- AArch64: Add ifunc support for Ares
+- soft-fp: Properly check _FP_W_TYPE_SIZE (swbz#24066)
+
 * Thu Jan 10 2019 Florian Weimer <fweimer@redhat.com> - 2.28.9000-30
 - Inherit -march=haswell flag from redhat-rpm-config
 
diff --git a/sources b/sources
index 6482fac..d795aec 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (glibc-2.28.9000-551-g2ef4271688.tar.xz) = 8ff3c682ede3485e1d99bbb966f42885bb7a6ac2f0e948f16aab3de96a105f27ac516ff2de9b921cb2fd444d1217f48fed25893b48f4cc9a4494ef506706f61b
+SHA512 (glibc-2.28.9000-564-g008b598e2a.tar.xz) = ec4e3c49e321a267001b23d5a63e7dca223169f25d66d60f0a8be093d75bd11902c417ca08781bf07220a52ec114a1d080e365c3944afa50b7c7caa40f5faaf5