diff --git a/src/YamlCppLib/libyaml/pkg/docker/Dockerfile b/src/YamlCppLib/libyaml/pkg/docker/Dockerfile
deleted file mode 100644
index 71f9df1677..0000000000
--- a/src/YamlCppLib/libyaml/pkg/docker/Dockerfile
+++ /dev/null
@@ -1,32 +0,0 @@
-FROM ubuntu:18.04
-
-RUN apt-get update \
- && apt-get install -y \
-        automake \
-        bison \
-        build-essential \
-        cmake \
-        curl \
-        doxygen \
-        flex \
-        git \
-        less \
-        libtool \
-        python \
-        vim \
-        zip \
- && true
-
-# http://www.doxygen.nl/manual/install.html
-
-RUN curl https://sourceforge.net/projects/doxygen/files/rel-1.8.14/doxygen-1.8.14.src.tar.gz/download \
-        -L -o /doxygen-1.8.14.src.tar.gz \
- && cd / \
- && tar -xvf doxygen-1.8.14.src.tar.gz \
- && cd doxygen-1.8.14 \
- && mkdir build \
- && cd build \
- && cmake -G "Unix Makefiles" .. \
- && make \
- && make install \
- && true