diff --git a/glibmm24.spec b/glibmm24.spec
index f7e8843..6bee85f 100644
--- a/glibmm24.spec
+++ b/glibmm24.spec
@@ -5,8 +5,8 @@
 %global libsigc_version 2.9.1
 
 Name:           glibmm24
-Version:        2.64.5
-Release:        5%{?dist}
+Version:        2.66.0
+Release:        1%{?dist}
 Summary:        C++ interface for the GLib library
 
 License:        LGPLv2+
@@ -95,6 +95,9 @@ chmod +x $RPM_BUILD_ROOT%{_libdir}/glibmm-2.4/proc/gmmproc
 
 
 %changelog
+* Fri May 07 2021 Kalev Lember <klember@redhat.com> - 2.66.0-1
+- Update to 2.66.0
+
 * Thu Apr 15 2021 Mohan Boddu <mboddu@redhat.com> - 2.64.5-5
 - Rebuilt for RHEL 9 BETA on Apr 15th 2021. Related: rhbz#1947937
 
diff --git a/sources b/sources
index e7c4238..e30fc24 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (glibmm-2.64.5.tar.xz) = e90bb722a35292b0fc54dff82604ec8d23a9e72b08581de14fd515539392ed713d0691352bf7de42d5027579959f76b268cdc11a76a3d3033ae8268f486ee817
+SHA512 (glibmm-2.66.0.tar.xz) = e6b38847a70d61412e7013a04fae2db1163cf746c1b8cb6bc43bd6985d66c1859ceb74dc2ca070ca88e5e4cd443325ccf8200c14fad9af47e33b5b49a0bb854f