diff --git a/Dockerfile b/Dockerfile
index f6a671d..a7fb48c 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -67,6 +67,7 @@ RUN \
     git \
     gperf \
     i965-va-driver-shaders \
+    libasound2-dev \
     libexpat1-dev \
     libgcc-10-dev \
     libgomp1 \
@@ -725,6 +726,7 @@ RUN \
     --disable-debug \
     --disable-doc \
     --disable-ffplay \
+    --enable-alsa \
     --enable-cuvid \
     --enable-ffprobe \
     --enable-gpl \
@@ -844,6 +846,7 @@ RUN \
   echo "**** install runtime ****" && \
     apt-get update && \
     apt-get install -y \
+    libasound2 \
     libedit2 \
     libelf1 \
     libexpat1 \
diff --git a/Dockerfile.aarch64 b/Dockerfile.aarch64
index 24e263e..cffe5cc 100644
--- a/Dockerfile.aarch64
+++ b/Dockerfile.aarch64
@@ -54,6 +54,7 @@ RUN \
     gcc \
     git \
     gperf \
+    libasound2-dev \
     libexpat1-dev \
     libfontconfig1-dev \
     libgcc-10-dev \
@@ -437,6 +438,7 @@ RUN \
     --disable-debug \
     --disable-doc \
     --disable-ffplay \
+    --enable-alsa \
     --enable-ffprobe \
     --enable-gpl \
     --enable-libaom \
@@ -501,6 +503,7 @@ RUN \
   echo "**** install runtime ****" && \
   apt-get update && \
   apt-get install -y \
+    libasound2 \
     libexpat1 \
     libfontconfig1 \
     libglib2.0-0 \
diff --git a/README.md b/README.md
index 13e49fb..5336135 100644
--- a/README.md
+++ b/README.md
@@ -173,6 +173,7 @@ Once registered you can define the dockerfile to use with `-f Dockerfile.aarch64
 
 ## Versions
 
+* **21.01.24:** - Add alsa support.
 * **18.01.24:** - Let the wrapper pass the ffmpeg exit code to docker run. Bump various libs.
 * **01.01.24:** - Add rav1e support. Bump libaom, fdkaac, libdrm, libvmaf, libvpl, mesa and svt-av1.
 * **06.12.23:** - Add libplacebo and libdobi to x86_64.
diff --git a/readme-vars.yml b/readme-vars.yml
index bfc2570..6b32079 100644
--- a/readme-vars.yml
+++ b/readme-vars.yml
@@ -177,6 +177,7 @@ full_custom_readme: |
 
   ## Versions
 
+  * **21.01.24:** - Add alsa support.
   * **18.01.24:** - Let the wrapper pass the ffmpeg exit code to docker run. Bump various libs.
   * **01.01.24:** - Add rav1e support. Bump libaom, fdkaac, libdrm, libvmaf, libvpl, mesa and svt-av1.
   * **06.12.23:** - Add libplacebo and libdobi to x86_64.