diff --git a/rust-lock_api.spec b/rust-lock_api.spec
index 444f660..dff7e38 100644
--- a/rust-lock_api.spec
+++ b/rust-lock_api.spec
@@ -6,7 +6,7 @@
 
 Name:           rust-%{crate}
 Version:        0.2.0
-Release:        3%{?dist}
+Release:        4%{?dist}
 Summary:        Wrappers to create fully-featured Mutex and RwLock types
 
 # Upstream license specification: Apache-2.0/MIT
@@ -107,6 +107,9 @@ which use "serde" feature of "%{crate}" crate.
 %endif
 
 %changelog
+* Fri Jul 26 2019 Fedora Release Engineering <releng@fedoraproject.org> - 0.2.0-4
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild
+
 * Sat Jun 22 09:18:00 CEST 2019 Igor Gnatenko <ignatenkobrain@fedoraproject.org> - 0.2.0-3
 - Regenerate