diff --git a/libchewing.spec b/libchewing.spec
index 870b50f..72a92ea 100644
--- a/libchewing.spec
+++ b/libchewing.spec
@@ -5,7 +5,7 @@
 
 Name:           libchewing
 Version:        0.5.1
-Release:        19%{?dist}
+Release:        20%{?dist}
 Summary:        Intelligent phonetic input method library for Traditional Chinese
 Summary(zh_TW): %{name_zh_TW}
 
@@ -98,6 +98,9 @@ rm -f %{buildroot}/%{_infodir}/dir
 %{libchewing_python_dir}/__pycache__/*
 
 %changelog
+* Tue Jan 26 2021 Fedora Release Engineering <releng@fedoraproject.org> - 0.5.1-20
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_34_Mass_Rebuild
+
 * Tue Jul 28 2020 Fedora Release Engineering <releng@fedoraproject.org> - 0.5.1-19
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_33_Mass_Rebuild