diff --git a/docker-builder-data/build/script/packet/sdl-2.0.9.sh b/docker-builder-data/build/script/packet/sdl-2.0.9.sh
new file mode 100644
index 0000000..53de70e
--- /dev/null
+++ b/docker-builder-data/build/script/packet/sdl-2.0.9.sh
@@ -0,0 +1,12 @@
+DEPS=""
+
+PK_DIRNAME="SDL2-2.0.9"
+## !!! SDL 2.0.7 produces linker errors with MinGW builds:
+# /usr/local/x86_64-w64-mingw32/sys-root/lib/libmingw32.a(lib64_libmingw32_a-crt0_c.o): In function `main':
+# /install-mingw/build/crt-x86_64-w64-mingw32/../../download/mingw-w64-v5.0.3/mingw-w64-crt/crt/crt0_c.c:18: undefined reference to `WinMain'
+PK_ARCHIVE="$PK_DIRNAME.tar.gz"
+PK_URL="https://www.libsdl.org/release/$PK_ARCHIVE"
+
+PK_CONFIGURE_OPTIONS_DEFAULT="--host=$HOST --prefix=$INSTALL_PACKET_DIR"
+
+source $INCLUDE_SCRIPT_DIR/inc-pkall-default.sh
diff --git a/docker-builder-data/build/script/packet/sdl_mixer-2.0.4.sh b/docker-builder-data/build/script/packet/sdl_mixer-2.0.4.sh
new file mode 100644
index 0000000..bc945a8
--- /dev/null
+++ b/docker-builder-data/build/script/packet/sdl_mixer-2.0.4.sh
@@ -0,0 +1,9 @@
+DEPS="sdl-2.0.9"
+
+PK_DIRNAME="SDL2_mixer-2.0.4"
+PK_ARCHIVE="$PK_DIRNAME.tar.gz"
+PK_URL="https://www.libsdl.org/projects/SDL_mixer/release/$PK_ARCHIVE"
+
+PK_CONFIGURE_OPTIONS_DEFAULT="--host=$HOST --prefix=$INSTALL_PACKET_DIR"
+
+source $INCLUDE_SCRIPT_DIR/inc-pkall-default.sh
diff --git a/docker-builder-data/build/script/packet/synfigstudio-master.sh b/docker-builder-data/build/script/packet/synfigstudio-master.sh
index 9a455a9..2a095e9 100644
--- a/docker-builder-data/build/script/packet/synfigstudio-master.sh
+++ b/docker-builder-data/build/script/packet/synfigstudio-master.sh
@@ -17,7 +17,7 @@
 #   adwaitaicons                  | gtk, rsvg
 #   gnomethemes                   | gtk, rsvg
 
-DEPS="synfigcore-master gtkmm-3.22.0 sdl_mixer-2.0.1"
+DEPS="synfigcore-master gtkmm-3.22.0 sdl_mixer-2.0.4"
 DEPS_NATIVE="libtool-2.4.6 synfigcore-master"
 
 if [ "$PLATFORM" = "linux" ]; then