diff --git a/.github/scripts/Linux/prepare.sh b/.github/scripts/Linux/prepare.sh
index 1ddd672ab..ddbc56ab3 100755
--- a/.github/scripts/Linux/prepare.sh
+++ b/.github/scripts/Linux/prepare.sh
@@ -6,7 +6,6 @@ echo "LIBRARY_PATH=/usr/local/qt/lib" >> $GITHUB_ENV
 echo "PKG_CONFIG_PATH=/usr/local/qt/lib/pkgconfig" >> $GITHUB_ENV
 echo "/usr/local/qt/bin" >> $GITHUB_PATH
 
-sudo add-apt-repository ppa:cybermax-dexter/sdl2-backport # SDL 2.0.12 - CESNET/UltraGrid#168; TODO: is this still needed?
 sudo add-apt-repository ppa:savoury1/vlc3 # new x265
 sudo sed -n 'p; /^deb /s/^deb /deb-src /p' -i /etc/apt/sources.list # for build-dep ffmpeg
 sudo apt update