diff --git a/.gitignore b/.gitignore
index fc8630f..c56de14 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,2 @@
 /glibc-2.27.9000-534-ge69d994a63.tar.gz
+/glibc-2.27.9000-545-gb7b88cea41.tar.gz
diff --git a/SUPPORTED b/SUPPORTED
index a8e5a0c..603aec7 100644
--- a/SUPPORTED
+++ b/SUPPORTED
@@ -121,6 +121,7 @@ de_LU.UTF-8/UTF-8 \
 de_LU/ISO-8859-1 \
 de_LU@euro/ISO-8859-15 \
 doi_IN/UTF-8 \
+dsb_DE/UTF-8 \
 dv_MV/UTF-8 \
 dz_BT/UTF-8 \
 el_GR.UTF-8/UTF-8 \
diff --git a/glibc.spec b/glibc.spec
index fba3058..d440786 100644
--- a/glibc.spec
+++ b/glibc.spec
@@ -1,6 +1,6 @@
-%define glibcsrcdir glibc-2.27.9000-534-ge69d994a63
+%define glibcsrcdir glibc-2.27.9000-545-gb7b88cea41
 %define glibcversion 2.27.9000
-%define glibcrelease 29%{?dist}
+%define glibcrelease 30%{?dist}
 # Pre-release tarballs are pulled in from git using a command that is
 # effectively:
 #
@@ -1854,6 +1854,11 @@ fi
 %endif
 
 %changelog
+* Mon Jul 02 2018 Florian Weimer <fweimer@redhat.com> - 2.27.9000-30
+- Auto-sync with upstream branch master,
+  commit b7b88cea4151d85eafd7ababc2e4b7ae1daeedf5:
+- New locale: dsb_DE (Lower Sorbian)
+
 * Fri Jun 29 2018 Florian Weimer <fweimer@redhat.com> - 2.27.9000-29
 - Drop glibc-deprecate_libcrypt.patch.  Variant applied upstream.
 - Drop glibc-linux-timespec-header-compat.patch.  Upstreamed.
diff --git a/sources b/sources
index b054055..ae72502 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (glibc-2.27.9000-534-ge69d994a63.tar.gz) = eaa2938bd3847dce318ef5fca893c3b0d4c27b5040aa9d228710e0de3531a33cddf46463d637e592ed36b8a645d2faffd397bc4411eca1e3b8b71255f2b47b1b
+SHA512 (glibc-2.27.9000-545-gb7b88cea41.tar.gz) = 28671f97091d104e52b0e4065bcba5107087236031aa01edf3195b5f2663bf9ccac1ee258040f8ff8dcc0dbdc3c0bda60f672334302c325029db14dd68ac7e56