diff --git a/rust-slotmap.spec b/rust-slotmap.spec
index a8dfab8..5618b71 100644
--- a/rust-slotmap.spec
+++ b/rust-slotmap.spec
@@ -6,7 +6,7 @@
 
 Name:           rust-%{crate}
 Version:        0.4.0
-Release:        3%{?dist}
+Release:        4%{?dist}
 Summary:        Slotmap data structure
 
 # Upstream license specification: Zlib
@@ -95,6 +95,10 @@ which use "unstable" feature of "%{crate}" crate.
 %endif
 
 %changelog
+* Sat Aug 01 2020 Fedora Release Engineering <releng@fedoraproject.org> - 0.4.0-4
+- Second attempt - Rebuilt for
+  https://fedoraproject.org/wiki/Fedora_33_Mass_Rebuild
+
 * Wed Jul 29 2020 Fedora Release Engineering <releng@fedoraproject.org> - 0.4.0-3
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_33_Mass_Rebuild