diff --git a/.gitignore b/.gitignore
index b6b398d..ef31711 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1 @@
-SOURCES/slirp4netns-4992082.tar.gz
+SOURCES/slirp4netns-21fdece.tar.gz
diff --git a/.slirp4netns.metadata b/.slirp4netns.metadata
index 71f2023..7ed4552 100644
--- a/.slirp4netns.metadata
+++ b/.slirp4netns.metadata
@@ -1 +1 @@
-77325a3614d2e7a6dbaf5f52d82cb1e67e181cf9 SOURCES/slirp4netns-4992082.tar.gz
+aa1f45a8411788e9fef6bdd69b2b1608b657a2b1 SOURCES/slirp4netns-21fdece.tar.gz
diff --git a/SPECS/slirp4netns.spec b/SPECS/slirp4netns.spec
index ed28ebd..d8885f7 100644
--- a/SPECS/slirp4netns.spec
+++ b/SPECS/slirp4netns.spec
@@ -1,12 +1,10 @@
 %global git0 https://github.com/rootless-containers/%{name}
-%global commit0 4992082b2af77c09bca6bd8504e2ebfa5e118c18
+%global commit0 21fdece2737dc24ffa3f01a341b8a6854f8b13b4
 %global shortcommit0 %(c=%{commit0}; echo ${c:0:7})
 
 Name: slirp4netns
-Version: 0.3.0
-Release: 3%{?dist}
-# no go-md2man in ix86
-ExcludeArch: %{ix86}
+Version: 0.4.2
+Release: 1.git%{shortcommit0}%{?dist}
 Summary: slirp for network namespaces
 License: GPLv2
 URL: %{git0}
@@ -14,13 +12,15 @@ Source0: %{git0}/archive/%{commit0}/%{name}-%{shortcommit0}.tar.gz
 BuildRequires: autoconf
 BuildRequires: automake
 BuildRequires: gcc
-BuildRequires: git
 BuildRequires: glib2-devel
+BuildRequires: git
 BuildRequires: go-md2man
+BuildRequires: libcap-devel
+BuildRequires: libseccomp-devel
 BuildRequires: make
 
 %description
-User-mode networking for unprivileged network namespaces.
+slirp for network namespaces, without copying buffers across the namespaces.
 
 %package devel
 Summary: %{summary}
@@ -29,7 +29,9 @@ BuildArch: noarch
 %description devel
 %{summary}
 
-This package contains the devel files for %{name}.
+This package contains library source intended for
+building other packages which use import path with
+%{import_path} prefix.
 
 %prep
 %autosetup -Sgit -n %{name}-%{commit0}
@@ -54,6 +56,23 @@ make DESTDIR=%{buildroot} install install-man
 %{_mandir}/man1/%{name}.1.gz
 
 %changelog
+* Mon Nov 25 2019 Jindrich Novy <jnovy@redhat.com> - 0.4.2-1.git21fdece
+- update to latest 0.4.2, fixes bug 1763454
+- Related: RHELPLAN-25139
+
+* Thu Oct 31 2019 Jindrich Novy <jnovy@redhat.com> - 0.4.0-2
+- add new BR: libseccomp-devel
+- Related: #1766774
+
+* Wed Oct 30 2019 Jindrich Novy <jnovy@redhat.com> - 0.4.0-1
+- update to v.0.4.0
+- sync with fedora spec
+- drop applied CVE-2019-14378 patch
+- Resolves: #1766774
+
+* Thu Sep 26 2019 Jindrich Novy <jnovy@redhat.com> - 0.3.0-4
+- Fix CVE-2019-14378 (#1755595).
+
 * Fri Jun 07 2019 Lokesh Mandvekar <lsm5@redhat.com> - 0.3.0-3
 - Resolves: #1683217 - BR: glib2-devel