diff --git a/mingw-libpng.spec b/mingw-libpng.spec
index 4ee482d..88defbf 100644
--- a/mingw-libpng.spec
+++ b/mingw-libpng.spec
@@ -2,7 +2,7 @@
 
 Name:           mingw-libpng
 Version:        1.6.37
-Release:        3%{?dist}
+Release:        4%{?dist}
 Summary:        MinGW Windows Libpng library
 
 License:        zlib
@@ -133,6 +133,9 @@ rm -rf $RPM_BUILD_ROOT%{mingw64_mandir}
 
 
 %changelog
+* Tue Jul 28 2020 Fedora Release Engineering <releng@fedoraproject.org> - 1.6.37-4
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_33_Mass_Rebuild
+
 * Wed Jan 29 2020 Fedora Release Engineering <releng@fedoraproject.org> - 1.6.37-3
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_32_Mass_Rebuild