diff --git a/README.md b/README.md
index 8d18541..5e5e373 100644
--- a/README.md
+++ b/README.md
@@ -717,7 +717,7 @@ method takes two arguments:
 ### Profunctor
 
 A value that implements the Profunctor specification must also implement
-the [Functor](#functor) specification.
+the [Functor](#functor) and [Contravariant](#contravariant) specifications.
 
 1. `p.promap(a => a, b => b)` is equivalent to `p` (identity)
 2. `p.promap(a => f(g(a)), b => h(i(b)))` is equivalent to `p.promap(f, i).promap(g, h)` (composition)
diff --git a/figures/dependencies.dot b/figures/dependencies.dot
index cc5122b..6e2f577 100644
--- a/figures/dependencies.dot
+++ b/figures/dependencies.dot
@@ -33,6 +33,7 @@ digraph {
   Apply -> Chain;
   Chain -> ChainRec;
   Chain -> Monad;
+  Contravariant -> Profunctor;
   Extend -> Comonad;
   Foldable -> Traversable;
   Functor -> Alt;
diff --git a/figures/dependencies.png b/figures/dependencies.png
index 598c70a..fc419d3 100644
Binary files a/figures/dependencies.png and b/figures/dependencies.png differ