diff --git a/.gitignore b/.gitignore
index 81a1a62..61e189e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -101,3 +101,5 @@
 /mkvtoolnix-48.0.0.tar.xz.sig
 /mkvtoolnix-49.0.0.tar.xz
 /mkvtoolnix-49.0.0.tar.xz.sig
+/mkvtoolnix-51.0.0.tar.xz
+/mkvtoolnix-51.0.0.tar.xz.sig
diff --git a/mkvtoolnix.spec b/mkvtoolnix.spec
index b116cbb..c7eeb93 100644
--- a/mkvtoolnix.spec
+++ b/mkvtoolnix.spec
@@ -1,6 +1,6 @@
 Summary: Matroska container manipulation utilities
 Name: mkvtoolnix
-Version: 49.0.0
+Version: 51.0.0
 Release: 1%{?dist}
 License: GPLv2+
 Source0: https://mkvtoolnix.download/sources/mkvtoolnix-%{version}.tar.xz
@@ -28,7 +28,6 @@ BuildRequires: libmatroska-devel >= 1.6.1
 BuildRequires: libvorbis-devel
 BuildRequires: lzo-devel
 BuildRequires: po4a
-BuildRequires: pcre-devel
 BuildRequires: pkgconfig(dvdread)
 BuildRequires: pkgconfig(Qt5Multimedia)
 BuildRequires: pugixml-devel
@@ -44,6 +43,7 @@ Requires: libmatroska%{_isa} >= 1.6.1
 Provides: bundled(avilib) = 0.6.10
 # fmt in F31 is too old
 Provides: bundled(fmt) = 6.2.1
+Provides: bundled(jpcre2) = 10.32.1
 # https://www.bunkus.org/videotools/librmff/index.html
 Provides: bundled(librmff) = 0.6.0
 
@@ -129,6 +129,10 @@ drake tests:run_unit
 %{_datadir}/mkvtoolnix
 
 %changelog
+* Mon Oct 05 2020 Dominik Mierzejewski <rpm@greysector.net> - 51.0.0-1
+- update to 51.0.0 (#1876232)
+- upstream switched to pcre2 for regex
+
 * Fri Aug 21 2020 Dominik Mierzejewski <rpm@greysector.net> - 49.0.0-1
 - update to 49.0.0 (#1862797)
 - requires libmatroska 1.6.1
diff --git a/sources b/sources
index 7879fe2..beba3eb 100644
--- a/sources
+++ b/sources
@@ -1,2 +1,2 @@
-SHA512 (mkvtoolnix-49.0.0.tar.xz) = 087638abea16639d4c452639617d0a183b58bf0496b1c150a46b80a50c15c4a4e9926437dfe002e7f574bd2b72b1e0cf810838c476dd7816bad86ed026e5f4c7
-SHA512 (mkvtoolnix-49.0.0.tar.xz.sig) = 4c16be9766df70ad98aff3f69c82788bda33952be40df54eec71da35ca0c0577cd52f10662ac2fada1f86dbc0a03b9f30b26d46b0768d23805b4f3b7afb284e9
+SHA512 (mkvtoolnix-51.0.0.tar.xz) = 2e91b039dbcab9afbad29c6c8e66ac305b2518319f68301a34a909fdffb02305025106368d4338abf148be5af4adfebab2eb1b5ccf0c9c0b0cef8f9e6e58a26e
+SHA512 (mkvtoolnix-51.0.0.tar.xz.sig) = 6ed725eba5d56308c64dcebd81e3f1101e2389684632a2e65fd126595c37f2027770e37f15b220f959092c8bbffcf195a30badd2c8ad3cfcd5695997b494eaca