diff --git a/nbdkit.spec b/nbdkit.spec
index 2b6e004..b916608 100644
--- a/nbdkit.spec
+++ b/nbdkit.spec
@@ -60,8 +60,8 @@ ExclusiveArch:  x86_64
 %global source_directory 1.37-development
 
 Name:           nbdkit
-Version:        1.37.1
-Release:        2%{?dist}
+Version:        1.37.2
+Release:        1%{?dist}
 Summary:        NBD server
 
 License:        BSD-3-Clause
@@ -588,6 +588,8 @@ nbdkit-rate-filter         Limit bandwidth by connection or server.
 
 nbdkit-readahead-filter    Prefetch data when reading sequentially.
 
+nbdkit-readonly-filter     Switch a plugin between read-only and writable.
+
 nbdkit-retry-filter        Reopen connection on error.
 
 nbdkit-retry-request-filter Retry single requests on error.
@@ -1182,6 +1184,7 @@ fi
 %endif
 %{_libdir}/%{name}/filters/nbdkit-rate-filter.so
 %{_libdir}/%{name}/filters/nbdkit-readahead-filter.so
+%{_libdir}/%{name}/filters/nbdkit-readonly-filter.so
 %{_libdir}/%{name}/filters/nbdkit-retry-filter.so
 %{_libdir}/%{name}/filters/nbdkit-retry-request-filter.so
 %{_libdir}/%{name}/filters/nbdkit-scan-filter.so
@@ -1222,6 +1225,7 @@ fi
 %endif
 %{_mandir}/man1/nbdkit-rate-filter.1*
 %{_mandir}/man1/nbdkit-readahead-filter.1*
+%{_mandir}/man1/nbdkit-readonly-filter.1*
 %{_mandir}/man1/nbdkit-retry-filter.1*
 %{_mandir}/man1/nbdkit-retry-request-filter.1*
 %{_mandir}/man1/nbdkit-scan-filter.1*
@@ -1322,6 +1326,10 @@ fi
 
 
 %changelog
+* Tue Nov 07 2023 Richard W.M. Jones <rjones@redhat.com> - 1.37.2-1
+- New upstream development version 1.37.2
+- New nbdkit-readonly-filter.
+
 * Wed Nov 01 2023 Richard W.M. Jones <rjones@redhat.com> - 1.37.1-2
 - Add experimental SELinux support (RHEL-5174)
 
diff --git a/sources b/sources
index ebf9e10..d242fcf 100644
--- a/sources
+++ b/sources
@@ -1,2 +1,2 @@
-SHA512 (nbdkit-1.37.1.tar.gz) = be5272a75014fbdfea5959d28f85ae9c769f1621678a194e8f53b2014cbac57228a77cf070b03ea0b14db29c19e279c62097c61173caee58ea80eec1db978007
-SHA512 (nbdkit-1.37.1.tar.gz.sig) = d8e39ca5879a3908f51a9868e4753368cc8e528307b0a28eddc7637be7a34fa6a52988a2036ba61e56a7db1ca91fcd156f260c0ab6b78ae10dfa4da4a550e2aa
+SHA512 (nbdkit-1.37.2.tar.gz) = 2e410ed7be75ddbca111be3a54a8f7246042233c8ac922634b5a2fdbe8781ba89c93cf4655bb0737e175fbb6a1846e3faad3523adb49925a886cca914a0a5f67
+SHA512 (nbdkit-1.37.2.tar.gz.sig) = 9eb2f18e7a2234090394ec7ab17cbe413b633c5eadd182a70a88f430b4948d4b02b7468f95b6347de961a99117c169930bb25f95a9e1735aa7627cc72e3298f6