diff --git a/rust-block-padding.spec b/rust-block-padding.spec
index 1244590..55f3812 100644
--- a/rust-block-padding.spec
+++ b/rust-block-padding.spec
@@ -6,7 +6,7 @@
 
 Name:           rust-%{crate}
 Version:        0.2.1
-Release:        3%{?dist}
+Release:        4%{?dist}
 Summary:        Padding and unpadding of messages divided into blocks
 
 # Upstream license specification: MIT OR Apache-2.0
@@ -70,6 +70,9 @@ which use "default" feature of "%{crate}" crate.
 %endif
 
 %changelog
+* Fri Jan 21 2022 Fedora Release Engineering <releng@fedoraproject.org> - 0.2.1-4
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_36_Mass_Rebuild
+
 * Fri Jul 23 2021 Fedora Release Engineering <releng@fedoraproject.org> - 0.2.1-3
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_35_Mass_Rebuild