diff --git a/Dockerfile b/Dockerfile
index e60ac9a..20523ac 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -12,7 +12,7 @@ RUN apt-get -y install gawk wget git-core diffstat unzip \
 		       chrpath socat cpio python python3 \
 		       libsdl1.2-dev xterm tar bzip2 curl \
 		       dosfstools mtools parted syslinux tree \
-		       python3-pip bc gosu
+		       python3-pip bc gosu python3-yaml
 COPY . /kas
 RUN pip3 install /kas
 
diff --git a/README.md b/README.md
index f3f0424..79674ee 100644
--- a/README.md
+++ b/README.md
@@ -22,6 +22,7 @@ This projects depends on
 
 - Python 3
 - configparser
+- PyYAML
 
 If you need Python 2 support consider sending patches. The most
 obvious place to start is to use the trollius package intead of