diff --git a/README.rst b/README.rst
index b608753e..9a2405eb 100644
--- a/README.rst
+++ b/README.rst
@@ -308,13 +308,16 @@ Are you using PySwarms in your project or research? Please cite us!
         url     = {https://doi.org/10.21105/joss.00433}
     }
 
-Projects citing PySwarms
-~~~~~~~~~~~~~~~~~~~~~~~~
+People using PySwarms
+~~~~~~~~~~~~~~~~~~~~~~
+Not on the list? Ping us in the Issue Tracker!
 
+* Gousios, Georgios. Lecture notes for the TU Delft TI3110TU course Algorithms and Data Structures. Accessed May 22, 2018. http://gousios.org/courses/algo-ds/book/string-distance.html#sop-example-using-pyswarms.
 * Nandy, Abhishek, and Manisha Biswas., "Applying Python to Reinforcement Learning." *Reinforcement Learning*. Apress, Berkeley, CA, 2018. 89-128.
 * Benedetti, Marcello, et al., "A generative modeling approach for benchmarking and training shallow quantum circuits." *arXiv preprint arXiv:1801.07686* (2018).
 * Vrbančič et al., "NiaPy: Python microframework for building nature-inspired algorithms." Journal of Open Source Software, 3(23), 613, https://doi.org/10.21105/joss.00613
 
+
 Others
 ------
 Like it? Love it? Leave us a star on Github_ to show your appreciation! 
diff --git a/requirements_dev.txt b/requirements_dev.txt
index 11d28b91..0c1417b4 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -6,7 +6,7 @@ flake8==3.5.0
 mock==2.0.0
 tox==3.0.0
 coverage==4.5.1
-Sphinx==1.7.4
+Sphinx==1.7.5
 cryptography==2.2.2
 PyYAML==3.12
 future==0.16.0