From 34474c1aac566917cf70ca0132ee044311df34d6 Mon Sep 17 00:00:00 2001
From: MapleCCC <littlelittlemaple@gmail.com>
Date: Wed, 17 Aug 2022 16:54:00 +0800
Subject: [PATCH] Fix problematic doc build, due to the new builder image
 provided by readthedocs doesn't has the `graphviz-dev` package pre-installed
 any more

---
 .readthedocs.yml | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/.readthedocs.yml b/.readthedocs.yml
index bf9cfe15a..7889c2c9d 100644
--- a/.readthedocs.yml
+++ b/.readthedocs.yml
@@ -10,6 +10,8 @@ build:
   tools:
     python: "3"
     rust: "1.55"
+  apt_packages:
+    - graphviz
 
 python:
    install: