diff --git a/rust-heapsize.spec b/rust-heapsize.spec
index 76113fd..5cb4193 100644
--- a/rust-heapsize.spec
+++ b/rust-heapsize.spec
@@ -7,7 +7,7 @@
 
 Name:           rust-%{crate}
 Version:        0.4.2
-Release:        9%{?dist}
+Release:        10%{?dist}
 Summary:        Infrastructure for measuring the total runtime size of an object on the heap
 
 # Upstream license specification: MIT/Apache-2.0
@@ -82,6 +82,9 @@ which use "unstable" feature of "%{crate}" crate.
 %endif
 
 %changelog
+* Wed Jul 29 2020 Fedora Release Engineering <releng@fedoraproject.org> - 0.4.2-10
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_33_Mass_Rebuild
+
 * Thu Jan 30 2020 Fedora Release Engineering <releng@fedoraproject.org> - 0.4.2-9
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_32_Mass_Rebuild