diff --git a/.gitignore b/.gitignore
index 4d1787c..6853ef6 100644
--- a/.gitignore
+++ b/.gitignore
@@ -64,3 +64,4 @@
 /rpm-ostree-2018.6.42.gda27b94b.tar.xz
 /rpm-ostree-2018.7.tar.xz
 /rpm-ostree-2018.8.tar.xz
+/rpm-ostree-2018.9.tar.xz
diff --git a/rpm-ostree.spec b/rpm-ostree.spec
index 8d3372a..f2cb3d5 100644
--- a/rpm-ostree.spec
+++ b/rpm-ostree.spec
@@ -13,7 +13,7 @@
 
 Summary: Hybrid image/package system
 Name: rpm-ostree
-Version: 2018.8
+Version: 2018.9
 Release: 1%{?dist}
 #VCS: https://github.com/cgwalters/rpm-ostree
 # This tarball is generated via "cd packaging && make -f Makefile.dist-packaging dist-snapshot"
@@ -53,8 +53,8 @@ BuildRequires: gperf
 BuildRequires: gnome-common
 BuildRequires: /usr/bin/g-ir-scanner
 # Core requirements
-# Easy way to check this: `objdump -p /path/to/rpm-ostree | grep LIBOSTREE` and pick the highest
-BuildRequires: pkgconfig(ostree-1) >= 2018.6
+# One way to check this: `objdump -p /path/to/rpm-ostree | grep LIBOSTREE` and pick the highest (though that might miss e.g. new struct members)
+BuildRequires: pkgconfig(ostree-1) >= 2018.9
 BuildRequires: pkgconfig(polkit-gobject-1)
 BuildRequires: pkgconfig(json-glib-1.0)
 BuildRequires: pkgconfig(rpm)
@@ -199,6 +199,9 @@ $PYTHON autofiles.py > files.devel \
 %files devel -f files.devel
 
 %changelog
+* Sun Oct 28 2018 Jonathan Lebon <jonathan@jlebon.com> - 2018.9-1
+- New upstream version
+
 * Tue Sep 11 2018 Jonathan Lebon <jonathan@jlebon.com> - 2018.8-1
 - New upstream version
 
diff --git a/sources b/sources
index e309006..98e47ba 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (rpm-ostree-2018.8.tar.xz) = b2e91f6b92c0654f5f50e664b086457ff0d1cc18f7beed0ed1f8597d1b0fea6bf4b8b401bab7d047c5e7bbe0902efaced13dbfd209ec175f34d55ed095308f75
+SHA512 (rpm-ostree-2018.9.tar.xz) = 14b7d160d73268bd4427d62d1be1a16a8d721bde5edaceea672fbe2fd917617fbeab086325f62dff649c200906b4c4df7098c196039532d5624f14eb4c30c05f