diff --git a/src/python/Dockerfile b/src/python/Dockerfile
index 3ba575c..7e7342b 100644
--- a/src/python/Dockerfile
+++ b/src/python/Dockerfile
@@ -14,8 +14,8 @@ COPY download_wheels.py .
 RUN python ./download_wheels.py
 
 # Install sdist without extensions to set up the directory
-ENV NEW_RELIC_EXTENSIONS False
-ENV WRAPT_DISABLE_EXTENSIONS True
+ENV NEW_RELIC_EXTENSIONS=False
+ENV WRAPT_DISABLE_EXTENSIONS=True
 RUN pip install ./workspace/newrelic.tar.gz --target=./workspace/newrelic && \
     rm ./workspace/newrelic.tar.gz
 
diff --git a/src/python/requirements-builder.txt b/src/python/requirements-builder.txt
index 789119d..ffe61b2 100644
--- a/src/python/requirements-builder.txt
+++ b/src/python/requirements-builder.txt
@@ -1,2 +1,3 @@
 requests
-setuptools>=40.8.0
\ No newline at end of file
+setuptools>=40.8.0
+wheel
\ No newline at end of file