diff --git a/rust-datetime.spec b/rust-datetime.spec
index e5ae1d7..80e6b6c 100644
--- a/rust-datetime.spec
+++ b/rust-datetime.spec
@@ -6,7 +6,7 @@
 
 Name:           rust-%{crate}
 Version:        0.5.1
-Release:        3%{?dist}
+Release:        4%{?dist}
 Summary:        Library for date and time formatting and arithmetic
 
 # Upstream license specification: MIT
@@ -146,6 +146,9 @@ which use "parse" feature of "%{crate}" crate.
 %endif
 
 %changelog
+* Wed Jan 27 2021 Fedora Release Engineering <releng@fedoraproject.org> - 0.5.1-4
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_34_Mass_Rebuild
+
 * Sat Aug 01 2020 Fedora Release Engineering <releng@fedoraproject.org> - 0.5.1-3
 - Second attempt - Rebuilt for
   https://fedoraproject.org/wiki/Fedora_33_Mass_Rebuild