diff --git a/requirements.txt b/requirements.txt
index cfd8d41..f3c7116 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,11 +1,12 @@
-pyomo
-numpy
-pytest
-sklearn
+docopt
+mkdocs
+mkdocs-cinder
 networkx
-tqdm
+numpy
 pandas
+pyomo
+pytest
 pytest-watch
-mkdocs
-mkdocs-cinder
 python-markdown-math
+sklearn
+tqdm