diff --git a/.gitignore b/.gitignore
index c17d6d4..18545e0 100644
--- a/.gitignore
+++ b/.gitignore
@@ -11,3 +11,4 @@
 /gtk-3.99.0.tar.xz
 /gtk-3.99.1.tar.xz
 /gtk-3.99.2.tar.xz
+/gtk-3.99.3.tar.xz
diff --git a/gtk4.spec b/gtk4.spec
index 5eadf16..5b8016d 100644
--- a/gtk4.spec
+++ b/gtk4.spec
@@ -16,8 +16,8 @@
 %global __provides_exclude_from ^%{_libdir}/gtk-4.0
 
 Name:           gtk4
-Version:        3.99.2
-Release:        2%{?dist}
+Version:        3.99.3
+Release:        1%{?dist}
 Summary:        GTK graphical user interface library
 
 License:        LGPLv2+
@@ -214,6 +214,9 @@ desktop-file-validate %{buildroot}%{_datadir}/applications/*.desktop
 %{_mandir}/man1/gtk4-widget-factory.1*
 
 %changelog
+* Fri Oct 16 2020 Kalev Lember <klember@redhat.com> - 3.99.3-1
+- Update to 3.99.3
+
 * Thu Oct 01 2020 Kalev Lember <klember@redhat.com> - 3.99.2-2
 - Update required pango and glib2 versions
 
diff --git a/sources b/sources
index b3f4c2b..febcb71 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (gtk-3.99.2.tar.xz) = 0ddb0071a7a65c224982ba488e414b0619392a5871ec887bd06b3837fc08ee00073687dd220bf9492827cd3a8e211de013157fc158cbe73d3ae899f71c81c074
+SHA512 (gtk-3.99.3.tar.xz) = f5ffdfbcd11639a1c02aa93e6ce7ce8b9ead384d89ff28ce0b2dde9cc8dcb0d77c7f0f6fce314fe6c7991abe5241feccc9b6fc4aadd270a6044c3aa46201f453