diff --git a/requirements.txt b/requirements.txt
index 6d97630..ccfb930 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -18,3 +18,6 @@ mistune_contrib==0.1
 honcho==0.5.0
 
 pyScss==1.3.4
+  six==1.9.0
+  enum34==1.0.4
+  pathlib==1.0.1
diff --git a/vendor/enum34-1.0.4.zip b/vendor/enum34-1.0.4.zip
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diff --git a/vendor/pathlib-1.0.1.tar.gz b/vendor/pathlib-1.0.1.tar.gz
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diff --git a/vendor/six-1.9.0-py2.py3-none-any.whl b/vendor/six-1.9.0-py2.py3-none-any.whl
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index 0000000..743ee12
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