diff --git a/docker/Dockerfile b/docker/Dockerfile
index 87ea4c43..5dd55e9e 100644
--- a/docker/Dockerfile
+++ b/docker/Dockerfile
@@ -4,7 +4,7 @@ WORKDIR	/tmp/workdir
 
 ARG	MAKEFLAGS="-j2"
 ARG	FFMPEG_VERSION=4.1.4
-ARG	WT_VERSION=4.1.1
+ARG	WT_VERSION=4.2.0
 ARG	IMAGEMAGICK6_VERSION=6.9.10-71
 ARG	PSTREAMS_VERSION=1.0.1
 ARG	LMS_VERSION=3.2.0
@@ -74,7 +74,7 @@ RUN \
 	--disable-everything \
 	--enable-decoder=aac*,ac3*,flac,mp3*,libopus,pcm*,libvorbis,wavpack,wma*,libopenjpg,png,tiff \
 	--enable-encoder=libmp3lame,libopus,libvorbis \
-	--enable-demuxer=aiff,asf,flac,ipod,ogg,matroska,mp3,mp4,wav,wv,webm \
+	--enable-demuxer=aac,aiff,asf,flac,ipod,ogg,matroska,mp3,mp4,wav,wv,webm \
 	--enable-muxer=ogg,matroska,mp3,webm \
 	--enable-protocol=file,pipe \
 	--enable-filter=aresample \