diff --git a/libreoffice.changes b/libreoffice.changes
index 1f2c64c..093caad 100644
--- a/libreoffice.changes
+++ b/libreoffice.changes
@@ -3,6 +3,7 @@ Tue Jul 11 12:44:57 UTC 2017 - tchvatal@suse.com
 
 - Version update to 5.4.0.2:
   * More fixes from 5.4.0 release branch
+- Use system based xmlsec1
 
 -------------------------------------------------------------------
 Tue Jul  4 10:05:19 UTC 2017 - tchvatal@suse.com
diff --git a/libreoffice.spec b/libreoffice.spec
index cbace3a..4476938 100644
--- a/libreoffice.spec
+++ b/libreoffice.spec
@@ -56,8 +56,6 @@ Source452:      %{external_url}/90401bca927835b6fbae4a707ed187c8-nlpsolver-0.9.t
 # This never had an release so just bundle it as per what other distros do
 Source1999:     %{external_url}/4b87018f7fff1d054939d19920b751a0-collada2gltf-master-cb1d97788a.tar.bz2
 # Internal bundled stuff we can't remove
-# XMLSec is patched over and over in here
-Source2000:     %{external_url}/xmlsec1-1.2.24.tar.gz
 # To build this we would pull cygwin; not worth it
 Source2001:     http://dev-www.libreoffice.org/extern/185d60944ea767075d27247c3162b3bc-unowinreg.dll
 # hsqldb simply does not work with new system version, but luckily we migrate to firebird
@@ -223,6 +221,7 @@ BuildRequires:  pkgconfig(poppler-cpp)
 BuildRequires:  pkgconfig(python3)
 BuildRequires:  pkgconfig(redland)
 BuildRequires:  pkgconfig(sane-backends)
+BuildRequires:  pkgconfig(xmlsec1-nss) >= 1.2.24
 BuildRequires:  pkgconfig(xt)
 Requires:       libreoffice-branding >= 4.0
 Requires:       libreoffice-icon-themes = %{version}