diff --git a/doc/links.rst b/doc/links.rst
index 459d61c7b959cbd097dae56917c6dad663b92cd5..64703c9df619c65f2b217acea135c791748ef7a8 100644
--- a/doc/links.rst
+++ b/doc/links.rst
@@ -12,4 +12,3 @@
 .. _credible interval: https://en.wikipedia.org/wiki/Credible_interval
 .. _confidence interval: https://en.wikipedia.org/wiki/Confidence_interval
 .. _beta distribution: https://en.wikipedia.org/wiki/Beta_distribution
-.. _matplotlib: https://matplotlib.org