diff --git a/rubygem-nio4r.spec b/rubygem-nio4r.spec
index 960f87e..12537d4 100644
--- a/rubygem-nio4r.spec
+++ b/rubygem-nio4r.spec
@@ -5,7 +5,7 @@
 
 Name: rubygem-%{gem_name}
 Version: 2.5.2
-Release: 3%{?dist}
+Release: 4%{?dist}
 Summary: New IO for Ruby
 # The entire source code is MIT, bundled libev is BSD or GPLv2+
 License: MIT and (BSD or GPLv2+)
@@ -110,6 +110,9 @@ popd
 %{gem_instdir}/spec
 
 %changelog
+* Wed Jan  6 2021 Vít Ondruch <vondruch@redhat.com> - 2.5.2-4
+- Rebuilt for https://fedoraproject.org/wiki/Changes/Ruby_3.0
+
 * Wed Jul 29 2020 Fedora Release Engineering <releng@fedoraproject.org> - 2.5.2-3
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_33_Mass_Rebuild