diff --git a/Dockerfile b/Dockerfile
index 58f4add..7b6a235 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -5,6 +5,8 @@ FROM ubuntu:16.04
 # https://github.com/ContinuumIO/docker-images/blob/master/anaconda/Dockerfile
 ENV LANG=C.UTF-8 LC_ALL=C.UTF-8
 
+SHELL ["/bin/bash", "-c"]
+
 RUN apt-get update --fix-missing && apt-get install -y wget bzip2 ca-certificates \
     libglib2.0-0 libxext6 libsm6 libxrender1 \
     git mercurial subversion
@@ -15,8 +17,8 @@ RUN echo 'export PATH=/opt/conda/bin:$PATH' > /etc/profile.d/conda.sh && \
     rm ~/anaconda.sh
 
 RUN apt-get install -y curl grep sed dpkg && \
-    TINI_VERSION=`curl https://github.com/krallin/tini/releases/latest | grep -o "/v.*\"" | sed 's:^..\(.*\).$:\1:'` && \
-    curl -L "https://github.com/krallin/tini/releases/download/v${TINI_VERSION}/tini_${TINI_VERSION}.deb" > tini.deb && \
+    TINI_VERSION=`curl https://api.github.com/repos/krallin/tini/releases/latest | grep '"tag_name":' | sed -E 's/.*"([^"]+)".*/\1/'` && \
+    curl -L "https://github.com/krallin/tini/releases/download/${TINI_VERSION}/tini_${TINI_VERSION:1}.deb" > tini.deb && \
     dpkg -i tini.deb && \
     rm tini.deb && \
     apt-get clean
@@ -30,6 +32,9 @@ RUN pip install awscli
 # ALE requires zlib
 RUN apt-get -y install zlib1g-dev
 # MUJOCO requires graphics stuff (Why?)
+RUN cp /etc/apt/sources.list /etc/apt/sources.list~ \
+    && sed -Ei 's/^# deb-src /deb-src /' /etc/apt/sources.list \
+    && apt-get update
 RUN apt-get -y build-dep glfw
 RUN apt-get -y install libxrandr2 libxinerama-dev libxi6 libxcursor-dev
 RUN apt-get install -y vim ack-grep
@@ -43,6 +48,7 @@ RUN pip install Pillow
 WORKDIR /root/sql
 
 ADD environment.yml /root/sql/environment.yml
+RUN pip install --upgrade requests
 RUN conda env create -f /root/sql/environment.yml \
     && conda env update
 
@@ -79,3 +85,8 @@ RUN MUJOCO_ZIP="mjpro$(echo ${MUJOCO_VERSION} | sed -e "s/\.//g")_linux.zip" \
     && cp ${MUJOCO_PATH}/mjpro131/bin/libmujoco131.so ${RLLAB_PATH}/vendor/mujoco/ \
     && cp ${MUJOCO_PATH}/mjpro131/bin/libglfw.so.3 ${RLLAB_PATH}/vendor/mujoco/ \
     && rm ${MUJOCO_PATH}/${MUJOCO_ZIP}
+
+# ========== Package Patches ==========
+
+RUN source activate sql && pip install "numpy>=1.16"
+RUN sed -i 's/MemmapingPool/MemmappingPool/g' /root/rllab/rllab/sampler/stateful_pool.py
diff --git a/README.md b/README.md
index 33da50b..8686486 100644
--- a/README.md
+++ b/README.md
@@ -19,6 +19,8 @@ Currently, rendering of simulations is not supported on Docker due to a missing
 export MUJOCO_LICENSE_PATH=<path_to_mujoco>/mjkey.txt
 ```
 
+Please note that you should not use relative paths such as `~/mujoco/mjkey.txt` in the environment variable, as Docker compose does not expand them. You could use `"$HOME/.mujoco/mjkey.txt"` instead.
+
 Once that's done, you can run the Docker container with
 
 ```
diff --git a/environment.yml b/environment.yml
index 01e34cf..02a46aa 100644
--- a/environment.yml
+++ b/environment.yml
@@ -16,6 +16,7 @@ dependencies:
     - theano==0.8.2
     - pip:
         - gtimer
+        - protobuf==3.19.6
         - gym==0.8
         - mujoco_py==0.5.7
         - pyprind