diff --git a/Dockerfile b/Dockerfile
index 20fb9ec..eb67ffe 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -21,6 +21,7 @@ RUN curl -sL https://deb.nodesource.com/setup_8.x | sudo -E bash - &&\
 USER ${AVATAO_USER}
 WORKDIR /home/${AVATAO_USER}
 COPY .pyenvrc .
+COPY requirements.txt /tmp
 # no GitHub releases are available, so current tip of head is hardcoded to avoid surprises
 ARG PYTHON_VERSION="3.6.4"
 ARG PYENV_INSTALLER_URL="https://raw.githubusercontent.com/pyenv/pyenv-installer/78cfd4d/bin/pyenv-installer"
@@ -33,7 +34,7 @@ RUN curl -fSL -o pyenv-installer ${PYENV_INSTALLER_URL} &&\
     . $HOME/.pyenvrc &&\
     pyenv install ${PYTHON_VERSION} &&\
     pyenv global ${PYTHON_VERSION} &&\
-    pip install tornado pyzmq transitions terminado
+    pip install -r /tmp/requirements.txt
 
 USER root
 WORKDIR /data/
diff --git a/requirements.txt b/requirements.txt
new file mode 100644
index 0000000..5cfef8d
--- /dev/null
+++ b/requirements.txt
@@ -0,0 +1,4 @@
+tornado==4.5.3
+pyzmq==16.0.4
+transitions==0.6.4
+terminado==0.8.1