diff --git a/mkvtoolnix/trunk/PKGBUILD b/mkvtoolnix/trunk/PKGBUILD
index ae5e0ec4637..56e8d489753 100644
--- a/mkvtoolnix/trunk/PKGBUILD
+++ b/mkvtoolnix/trunk/PKGBUILD
@@ -8,7 +8,7 @@ pkgname=(
   mkvtoolnix-gui
 )
 pkgver=49.0.0
-pkgrel=2
+pkgrel=3
 pkgdesc='Set of tools to create, edit and inspect Matroska files'
 arch=(x86_64)
 url=https://mkvtoolnix.download/
@@ -30,8 +30,9 @@ makedepends=(
   ruby-rake
   zlib
 )
-_tag=428456274e6c76e87247c01fc130c6ce00eed1bb
-source=(git+https://gitlab.com/mbunkus/mkvtoolnix.git#tag=${_tag})
+_tag=4790b658f1daee604a11b1a3208c0d9eb5f5a4ad
+source=(git+https://gitlab.com/mbunkus/mkvtoolnix.git#tag=${_tag}?signed)
+validpgpkeys=(D9199745B0545F2E8197062B0F92290A445B9007) # Moritz Bunkus
 sha256sums=(SKIP)
 
 pkgver() {