updated installation docs

PynPoint · Oct 31, 2019 · bc5f706 · bc5f706
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commit bc5f706
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diff --git a/docs/installation.rst b/docs/installation.rst
@@ -73,6 +73,12 @@ In that case, the dependencies can be installed from the PynPoint folder:
 
     $ pip install -r requirements.txt
 
+And to update the dependencies to the latest versions with which PynPoint is compatible:
+
+.. code-block:: console
+
+    $ pip install --upgrade -r requirements.txt 
+
 By adding the path of the repository to the ``PYTHONPATH`` environment variable enables PynPoint to be imported from any location:
 
 .. code-block:: console