diff --git a/etc/requirements_dev.txt b/etc/requirements_dev.txt
index 43edede7..02ea3025 100644
--- a/etc/requirements_dev.txt
+++ b/etc/requirements_dev.txt
@@ -4,7 +4,11 @@ nose-parameterized==0.5.0
 nose-ignore-docstring==0.2
 -e git://github.com/python-excel/xlrd.git@b9239bf2bfc42e088dd2a75c22164757cca9cc4f#egg=xlrd-master
 
-# These are required my mock or its dependencies
+# These are required my bock or its dependencies
+MarkupSafe==0.23
+Jinja2==2.7.3
+funcsigs==0.4
+Pygments==2.0.2
 alabaster==0.7.6
 babel==1.3
 docutils==0.12