diff --git a/containthedocs-build.sh b/containthedocs-build.sh
index bc29e8f..d59b0a8 100755
--- a/containthedocs-build.sh
+++ b/containthedocs-build.sh
@@ -2,13 +2,12 @@
 
 set -x
 
-COMMAND="make -C docs html"
-
+COMMAND=(/bin/bash -c "sudo pip install -r requirements.txt -U ; make -C docs clean html")
 
 . ./containthedocs-image
 
-exec sudo docker run --rm -it \
+exec docker run --rm -t \
   -v "$PWD":"$PWD" --workdir "$PWD" \
   ${DOCKER_RUN_ARGS} \
   -e "LOCAL_USER_ID=$(id -u)" \
-  ${DOC_IMG} ${COMMAND}
+  ${DOC_IMG} "${COMMAND[@]}"