diff --git a/glib2.spec b/glib2.spec
index 8dd58ac..d337a4f 100644
--- a/glib2.spec
+++ b/glib2.spec
@@ -1,11 +1,11 @@
 Name: glib2
-Version: 2.65.3
+Version: 2.66.0
 Release: 1%{?dist}
 Summary: A library of handy utility functions
 
 License: LGPLv2+
 URL: http://www.gtk.org
-Source0: http://download.gnome.org/sources/glib/2.65/glib-%{version}.tar.xz
+Source0: http://download.gnome.org/sources/glib/2.66/glib-%{version}.tar.xz
 
 # Avoid requiring a too new gtk-doc version for building glib
 Patch0: gtk-doc-1-32.patch
@@ -217,6 +217,9 @@ glib-compile-schemas %{_datadir}/glib-2.0/schemas &> /dev/null || :
 %{_datadir}/installed-tests
 
 %changelog
+* Thu Sep 10 2020 Kalev Lember <klember@redhat.com> - 2.66.0-1
+- Update to 2.66.0
+
 * Wed Sep 02 2020 Kalev Lember <klember@redhat.com> - 2.65.3-1
 - Update to 2.65.3
 
diff --git a/sources b/sources
index bd36d7b..924b924 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (glib-2.65.3.tar.xz) = 483526020928cdc13ae20402a55c69cfc5da9e22c31056fceef822d6d09ddb46d72a980307f3f5c516b3ee1dcf62ede88b3871456dec6f6813ed7653047bd8a7
+SHA512 (glib-2.66.0.tar.xz) = 358e6a840b722139593eb7825c3aa70153eb26036e05d13d3286bcc6d2e962c2b4ddcb0fe5c6728b89bfffbd178101e72c576081ae714326a272a9fc34ed953e