diff --git a/.github/scripts/Linux/prepare.sh b/.github/scripts/Linux/prepare.sh
index 03c4bde83..2cdb95e37 100755
--- a/.github/scripts/Linux/prepare.sh
+++ b/.github/scripts/Linux/prepare.sh
@@ -18,7 +18,7 @@ sudo apt --no-install-recommends install nvidia-cuda-toolkit
 sudo apt install libglew-dev libglfw3-dev
 sudo apt install libglm-dev
 sudo apt install libx11-dev
-sudo apt install libsdl2-dev libsdl2-ttf-dev
+sudo apt install libsdl2-dev libsdl2-mixer-dev libsdl2-ttf-dev
 sudo apt install libspeexdsp-dev
 sudo apt install libssl-dev
 sudo apt install libasound-dev libjack-jackd2-dev libnatpmp-dev libv4l-dev portaudio19-dev
diff --git a/.github/scripts/Windows/prepare_msys.sh b/.github/scripts/Windows/prepare_msys.sh
index a4830daf9..b649872c6 100644
--- a/.github/scripts/Windows/prepare_msys.sh
+++ b/.github/scripts/Windows/prepare_msys.sh
@@ -41,7 +41,7 @@ MSYS_REPO=mingw-w64-clang-x86_64
 $PACMAN_INSTALL automake autoconf git make pkgconf ${MSYS_REPO}-toolchain ${MSYS_REPO}-cppunit unzip zip
 $PACMAN_INSTALL ${MSYS_REPO}-ffmpeg
 $PACMAN_INSTALL ${MSYS_REPO}-speexdsp
-$PACMAN_INSTALL ${MSYS_REPO}-glew ${MSYS_REPO}-SDL2 ${MSYS_REPO}-SDL2_ttf ${MSYS_REPO}-glfw
+$PACMAN_INSTALL ${MSYS_REPO}-glew ${MSYS_REPO}-SDL2 ${MSYS_REPO}-SDL2_mixer ${MSYS_REPO}-SDL2_ttf ${MSYS_REPO}-glfw
 $PACMAN_INSTALL ${MSYS_REPO}-glm
 $PACMAN_INSTALL ${MSYS_REPO}-portaudio # in case of problems build PA with --with-winapi=wmme,directx,wasapi
 $PACMAN_INSTALL ${MSYS_REPO}-curl # RTSP capture
diff --git a/.github/scripts/macOS/prepare.sh b/.github/scripts/macOS/prepare.sh
index 69c5a33b2..1395b2c56 100755
--- a/.github/scripts/macOS/prepare.sh
+++ b/.github/scripts/macOS/prepare.sh
@@ -16,7 +16,7 @@ echo "DYLIBBUNDLER_FLAGS=$DYLIBBUNDLER_FLAGS" >> "$GITHUB_ENV"
 
 brew install autoconf automake cppunit libtool pkg-config
 brew install speexdsp
-brew install ffmpeg portaudio sdl2 sdl2_ttf
+brew install ffmpeg portaudio sdl2 sdl2_mixer sdl2_ttf
 brew install imagemagick jack libnatpmp opencv openssl
 brew install ossp-uuid # for cineform
 brew install qt@5