diff --git a/Dockerfile b/Dockerfile
index 86a7def..1dc2395 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,18 +1,25 @@
 FROM python:3.9-slim
 RUN apt-get update && apt-get upgrade -y --no-install-recommends \
-  && apt-get install -y xsltproc libxml2-utils git build-essential curl zip unzip wget python3-venv python3-pip lftp --no-install-recommends \
+  && apt-get install -y xsltproc libxml2-utils git build-essential curl zip unzip wget python3-venv python3-pip lftp autoconf automake make libtool flex --no-install-recommends \
   && apt-get clean && rm -rf /var/cache/apt
 WORKDIR /deps
 #RUN git clone https://github.com/edsu/json2xml.git
 RUN git clone https://github.com/Cheedoong/xml2json.git
 RUN git clone https://github.com/OpenDataServices/flatten-tool.git
-RUN wget https://github.com/stedolan/jq/releases/download/jq-1.6/jq-linux64 -O jq
+
+# install jq manually because of performance issues in release 1.6
+RUN mkdir jq
+RUN git clone https://github.com/stedolan/jq.git jq/repo
+RUN cd /deps/jq/repo && git checkout a9f97e9e61a910a374a5d768244e8ad63f407d3e && git submodule update --init \
+  && autoreconf -fi && ./configure --with-oniguruma=builtin --disable-maintainer-mode --prefix=$PWD/.. \
+  && make && make install
 RUN chmod +x jq
-RUN cd xml2json && make
+
+RUN cd /deps/xml2json && make
 RUN cd /deps/flatten-tool
 RUN python3 -m venv .ve
 #RUN source .ve/bin/activate
 RUN ["/bin/bash", "-c", "source .ve/bin/activate"]
 RUN pip install json2xml
 #RUN pip3 install -r requirements.txt
-ENV PATH="$PATH:/deps:/deps/xml2json"
+ENV PATH="$PATH:/deps:/deps/xml2json:/deps/jq/bin"