diff --git a/Dockerfile b/Dockerfile
index d9c23f3..a206c66 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -5,5 +5,12 @@ FROM algolia/docsearch-scraper
 # `docker run`
 ENV WORKON_HOME /root
 
+# Tells pipenv to use this specific Pipfile rather than the Pipfile in the
+# current working directory (the working directory changes between `docker build`
+# and `docker run`, this ensures we always use the same Pipfile)
+ENV PIPENV_PIPFILE /root/Pipfile
+
+RUN pipenv install --python 3.6
+
 COPY entrypoint.sh /entrypoint.sh
 ENTRYPOINT ["/entrypoint.sh"]
\ No newline at end of file
diff --git a/entrypoint.sh b/entrypoint.sh
index 6af67ec..9542a04 100755
--- a/entrypoint.sh
+++ b/entrypoint.sh
@@ -1,8 +1,5 @@
 #!/bin/bash
 
-cd /root
-ls ./
-
 pipenv run python --version
 
 pipenv run pip freeze