diff --git a/buildah.spec b/buildah.spec
index 4f4067c..9a994a8 100644
--- a/buildah.spec
+++ b/buildah.spec
@@ -11,14 +11,14 @@ go build -buildmode pie -compiler gc -tags="rpm_crashtraceback libtrust_openssl
 %endif
 
 %global import_path github.com/containers/buildah
-#%%global branch release-1.29
-%global commit0 a3056cacd165979743a9e72618037e7f5a11a6d5
+%global branch main
+%global commit0 74a15d86454b610053b419039065ed401979f539
 %global shortcommit0 %(c=%{commit0}; echo ${c:0:7})
 
 Epoch: 1
 Name: buildah
 Version: 1.31.1
-Release: 1%{?dist}
+Release: 2%{?dist}
 Summary: A command line tool used for creating OCI Images
 License: ASL 2.0
 URL: https://%{name}.io
@@ -135,6 +135,10 @@ make DESTDIR=%{buildroot} PREFIX=%{_prefix} -C docs install
 %{_datadir}/%{name}/test
 
 %changelog
+* Fri Aug 04 2023 Jindrich Novy <jnovy@redhat.com> - 1:1.31.1-2
+- build buildah off main branch for early testing of zstd compression
+- Related: #2176055
+
 * Fri Jul 21 2023 Jindrich Novy <jnovy@redhat.com> - 1:1.31.1-1
 - update to https://github.com/containers/buildah/releases/tag/v1.31.1
 - Related: #2176055
diff --git a/sources b/sources
index d9d6c12..e8dc107 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (buildah-1.31.1-a3056ca.tar.gz) = 805b8cf05ce1d29a3c8277d86b1557cf83306fe34c36c7c941a3c0630bba5d03357c4f520bed07421ef9ffbfb18f37b64e107fc9bb0387cde60d0ad392b3ac88
+SHA512 (main-74a15d8.tar.gz) = ec32bf4a90d62207d8809a3f6e924fc586a04a64429d78233a871ede95130c80eb8ea30375d0c9ebd213944186021d0ab97793e2fc06c18c9d1a91e4fa19b181