diff --git a/src/library.js b/src/library.js
index 476e6fd6..70d1e97a 100644
--- a/src/library.js
+++ b/src/library.js
@@ -28,6 +28,7 @@ export default Object.assign(function Library(resolver) {
     Promises: () => Promises,
     _: () => require("lodash@4.17.21/lodash.min.js"),
     d3: () => require("d3@6.7.0/dist/d3.min.js"),
+    dot: () => require("@observablehq/graphviz@0.2.1/dist/graphviz.min.js"),
     htl: () => require("htl@0.2.5/dist/htl.min.js"),
     html: () => html,
     md: md(require),
diff --git a/test/index-test.js b/test/index-test.js
index 60d805bd..8ff32a60 100644
--- a/test/index-test.js
+++ b/test/index-test.js
@@ -13,6 +13,7 @@ test("new Library returns a library with the expected keys", async t => {
     "Promises",
     "_",
     "d3",
+    "dot",
     "htl",
     "html",
     "md",