diff --git a/Dockerfile b/Dockerfile
index 76e9cf4..599590a 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -2,8 +2,6 @@ FROM emscripten/emsdk:5.0.1 AS build
 
 ARG BUILD_USER=1000
 ARG FFMPEG_VERSION=8.0.1
-ARG X264_COMMIT=b35605a
-ARG LAME_VERSION=3.100
 
 ARG PREFIX=/tmp/ffmpeg-build
 ARG MAKEFLAGS="-j4"
@@ -18,39 +16,6 @@ RUN apt-get update && apt-get install -y autoconf libtool build-essential pkgcon
 
 USER ${BUILD_USER}
 
-# libx264
-WORKDIR /tmp/
-
-RUN git clone https://code.videolan.org/videolan/x264.git
-
-WORKDIR /tmp/x264
-
-RUN git checkout ${X264_COMMIT} && \
-  emconfigure ./configure \
-  --prefix=${PREFIX} \
-  --host=i686-gnu \
-  --enable-static \
-  --disable-cli \
-  --disable-asm \
-  --extra-cflags="-s USE_PTHREADS=1"
-
-RUN emmake make && emmake make install
-
-WORKDIR /tmp/
-# libmp3lame
-RUN wget -O lame-${LAME_VERSION}.tar.gz https://sourceforge.net/projects/lame/files/lame/${LAME_VERSION}/lame-${LAME_VERSION}.tar.gz/download && \
-  tar zxf lame-${LAME_VERSION}.tar.gz && rm lame-${LAME_VERSION}.tar.gz
-
-WORKDIR /tmp/lame-${LAME_VERSION}
-RUN  emconfigure ./configure \
-  --prefix=${PREFIX} \
-  --host=i686-gnu \
-  --enable-static \
-  --disable-frontend
-
-WORKDIR /tmp/lame-${LAME_VERSION}
-RUN emmake make && emmake make install
-
 # Get ffmpeg source.
 WORKDIR /tmp/
 RUN wget -O ffmpeg-${FFMPEG_VERSION}.tar.gz http://ffmpeg.org/releases/ffmpeg-${FFMPEG_VERSION}.tar.gz && \