Updated developer's guide link
@@ -262,7 +262,7 @@ the Poisson-Boltzmann equation.
## How to contribute to PyGBe
-If you are interested in contributing to the `PyGBe` project go to the [Developer's Guide](http://barbagroup.github.io/pygbe/docs/contributing.html) and follow the instructions.
+If you are interested in contributing to the `PyGBe` project go to the [Developer's Guide](https://pygbe.github.io/pygbe/docs/contributing.html) and follow the instructions.
## How to cite PyGBe
