diff --git a/Readme.md b/Readme.md
index 9c84ec5..78026b8 100644
--- a/Readme.md
+++ b/Readme.md
@@ -32,6 +32,13 @@ Pypub is currently only compatible with Python 2.
 
 Documentation is available at [http://pypub.readthedocs.org/en/latest/developer_interface.html](http://pypub.readthedocs.org/en/latest/developer_interface.html)
 
+# Dev Setup #
+
+To use code from a source code checkout from git
+
+    $ python -m pip install -r requirements.txt
+
+
 # Copyright and License #
 
 Copyright (c) 2020 William Cember
diff --git a/requirements-dev.txt b/requirements-dev.txt
new file mode 100644
index 0000000..9c8b60e
--- /dev/null
+++ b/requirements-dev.txt
@@ -0,0 +1,2 @@
+sphinxcontrib-napoleon
+-r requirements.txt
diff --git a/requirements.txt b/requirements.txt
index ea55fb9..8825391 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
-sphinxcontrib-napoleon
-beautifulsoup4
-requests
-jinja2
+MarkupSafe==1.1.1
+beautifulsoup4==4.9.3
+requests==2.22.0
+jinja2==2.11.3
diff --git a/setup.py b/setup.py
index 70dd463..12c19f4 100644
--- a/setup.py
+++ b/setup.py
@@ -10,9 +10,10 @@
     url = 'https://github.com/wcember/pypub',
     license='MIT',
     install_requires=[
-            'beautifulsoup4',
-            'jinja2',
-            'requests',
+            'MarkupSafe==1.1.1',
+            'beautifulsoup4==4.9.3',
+            'jinja2==2.11.3',
+            'requests==2.22.0',
             ],
     description= "Create epub's using python. Pypub is a python library to create epub files quickly without having to worry about the intricacies of the epub specification.",
 )
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