diff --git a/configure.ac b/configure.ac
index 8b389be..16a44d8 100644
--- a/configure.ac
+++ b/configure.ac
@@ -49,7 +49,7 @@ GETTEXT_PACKAGE="$PACKAGE"
 AC_SUBST(GETTEXT_PACKAGE)
 AC_DEFINE_UNQUOTED(GETTEXT_PACKAGE, "$GETTEXT_PACKAGE", gettext package name)
 AM_GNU_GETTEXT([external])
-AM_GNU_GETTEXT_VERSION(0.18)
+AM_GNU_GETTEXT_VERSION(0.20)
 AM_ICONV
 
 # Checks for unit test framework