diff --git a/Dockerfile b/Dockerfile
index 3b6f470..d09fb40 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-from ubuntu:24.04
+FROM ubuntu:24.04
 
 WORKDIR /usr/src/app
 
@@ -48,7 +48,6 @@ RUN apt-get update -y && \
     lua5.4 \
     liblua5.4-dev \
     liblua5.4-0 \
-    mpg123 \
     ffmpeg \
     wget
 
diff --git a/Makefile b/Makefile
index 4870cf9..aac0bc9 100644
--- a/Makefile
+++ b/Makefile
@@ -543,7 +543,7 @@ build/assets/%.aifc: assets/%.jsox tools/sound/jsox.js portal_pak_dir/%.wav
 
 build/assets/%.aifc: assets/%.msox portal_pak_dir/%.mp3
 	@mkdir -p $(@D)
-	mpg123 -w $(<:assets/%.msox=portal_pak_dir/%.wav) $(<:assets/%.msox=portal_pak_dir/%.mp3)
+	ffmpeg -y -i $(<:assets/%.msox=portal_pak_dir/%.mp3) $(<:assets/%.msox=portal_pak_dir/%.wav)
 	sox $(<:assets/%.msox=portal_pak_dir/%.wav) $(shell cat $<) $(@:%.aifc=%.wav)
 	$(SFZ2N64) -o $@ $(@:%.aifc=%.wav)
 
diff --git a/assets/sound/CMakeLists.txt b/assets/sound/CMakeLists.txt
index beb92de..9eaefb1 100644
--- a/assets/sound/CMakeLists.txt
+++ b/assets/sound/CMakeLists.txt
@@ -299,7 +299,7 @@ function(_add_music_transform_command MUSIC_SCRIPT OUTPUT_LIST)
         OUTPUT
             ${CONVERTED_FILE}
         COMMAND
-            ${MPG123} -q -w ${CONVERTED_FILE} ${INPUT_FILE}
+            ${FFMPEG} -y -i ${INPUT_FILE} ${CONVERTED_FILE}
         COMMENT
             "Converting $<PATH:RELATIVE_PATH,${INPUT_FILE},${PROJECT_SOURCE_DIR}>"
         VERBATIM
diff --git a/documentation/manual_setup.md b/documentation/manual_setup.md
index b64a4f0..38e5b4f 100644
--- a/documentation/manual_setup.md
+++ b/documentation/manual_setup.md
@@ -39,7 +39,7 @@ Setup and install dependencies for `skelatool64`
 echo "deb [trusted=yes] https://lambertjamesd.github.io/apt/ ./" \
     | sudo tee /etc/apt/sources.list.d/lambertjamesd.list
 sudo apt update
-sudo apt install vtf2png sfz2n64 mpg123 sox imagemagick unzip
+sudo apt install vtf2png sfz2n64 sox imagemagick unzip
 ``
 ```
 Install ffmpeg 4.3.1
diff --git a/tools/setup.sh b/tools/setup.sh
index b07f346..d5619d6 100644
--- a/tools/setup.sh
+++ b/tools/setup.sh
@@ -9,7 +9,7 @@ sudo dpkg --add-architecture i386
 sudo apt update
 
 # Install various packages
-sudo apt install binutils-mips-n64 gcc-mips-n64 git imagemagick liblua5.4-0 liblua5.4-dev lua5.4 make makemask mpg123 newlib-mips-n64 nodejs n64sdk root-compatibility-environment sfz2n64 sox unzip vtf2png -y
+sudo apt install binutils-mips-n64 gcc-mips-n64 git imagemagick liblua5.4-0 liblua5.4-dev lua5.4 make makemask newlib-mips-n64 nodejs n64sdk root-compatibility-environment sfz2n64 sox unzip vtf2png -y
 
 # Ubuntu WSL  needs these for some reason.
 sudo apt-get update && sudo apt-get install libxfixes3 libxi6 libxkbcommon0 libxxf86vm1 libgl1-mesa-glx -y