diff --git a/expat/expat.spec b/expat/expat.spec
index d116223302..000e343331 100644
--- a/expat/expat.spec
+++ b/expat/expat.spec
@@ -22,8 +22,8 @@
 ##
 
 #   package version
-%define       V_expat      2.4.1
-%define       V_expat_tag  2_4_1
+%define       V_expat      2.4.2
+%define       V_expat_tag  2_4_2
 
 #   package information
 Name:         expat
@@ -36,7 +36,7 @@ Class:        BASE
 Group:        XML
 License:      MIT/X11-style
 Version:      %{V_expat}
-Release:      20210525
+Release:      20211220
 
 #   list of sources
 Source0:      https://github.com/libexpat/libexpat/releases/download/R_%{V_expat_tag}/expat-%{V_expat}.tar.xz