diff --git a/rust-bytes0.4.spec b/rust-bytes0.4.spec
index b6ad6a5..db60dc9 100644
--- a/rust-bytes0.4.spec
+++ b/rust-bytes0.4.spec
@@ -6,7 +6,7 @@
 
 Name:           rust-%{crate}0.4
 Version:        0.4.12
-Release:        3%{?dist}
+Release:        4%{?dist}
 Summary:        Types and traits for working with bytes
 
 # Upstream license specification: MIT
@@ -107,6 +107,9 @@ which use "serde" feature of "%{crate}" crate.
 %endif
 
 %changelog
+* Wed Jan 27 2021 Fedora Release Engineering <releng@fedoraproject.org> - 0.4.12-4
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_34_Mass_Rebuild
+
 * Wed Jul 29 2020 Fedora Release Engineering <releng@fedoraproject.org> - 0.4.12-3
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_33_Mass_Rebuild