diff --git a/rust-bytesize.spec b/rust-bytesize.spec
index 4322250..c04e4d3 100644
--- a/rust-bytesize.spec
+++ b/rust-bytesize.spec
@@ -6,7 +6,7 @@
 
 Name:           rust-%{crate}
 Version:        1.0.0
-Release:        3%{?dist}
+Release:        4%{?dist}
 Summary:        Human-readable bytes representations
 
 # Upstream license specification: Apache-2.0
@@ -80,6 +80,9 @@ which use "serde" feature of "%{crate}" crate.
 %endif
 
 %changelog
+* Fri Jul 26 2019 Fedora Release Engineering <releng@fedoraproject.org> - 1.0.0-4
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild
+
 * Mon Feb 11 2019 Igor Gnatenko <ignatenkobrain@fedoraproject.org> - 1.0.0-3
 - Run tests in infrastructure