diff --git a/docs/INSTALL.rst b/docs/INSTALL.rst
index e02704ef69..63c9369c67 100644
--- a/docs/INSTALL.rst
+++ b/docs/INSTALL.rst
@@ -60,3 +60,13 @@ Or from GitHub::
 
 where the dependencies for orchestrating are installed. They are used for
 interacting with the services to schedule tests and to report the test results.
+
+
+Update Dependencies
+-------------------
+
+We track the dependencies using ``requirements.txt``. These packages are tested,
+and should work with teuthology. But if you want to bump up the versions of them,
+please use the following command to update this file ::
+
+  pip-compile -qo- | sed '/^-e / d' > requirements.txt
diff --git a/requirements.in b/requirements.in
new file mode 100644
index 0000000000..27b1825b87
--- /dev/null
+++ b/requirements.in
@@ -0,0 +1 @@
+-e .[coverage,orchestra,test]