From c76ec4516a7d3d060c3bc9681b4c3becd489a2c2 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Brigitta=20Sip=C5=91cz?= <bsipocz@gmail.com>
Date: Tue, 9 May 2023 12:13:05 +0200
Subject: [PATCH] CI: fix RTD build to use newer version and properly install
 grapviz

---
 .readthedocs.yaml | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/.readthedocs.yaml b/.readthedocs.yaml
index 9c9a8554d1..b18bf1eaf4 100644
--- a/.readthedocs.yaml
+++ b/.readthedocs.yaml
@@ -1,12 +1,11 @@
 version: 2
 
 build:
-  os: "ubuntu-20.04"
+  os: "ubuntu-22.04"
   tools:
-    python: "mambaforge-4.10"
-
-conda:
-  environment: docs/rtd_environment.yaml
+    python: "3.10"
+  apt_packages:
+    - graphviz
 
 sphinx:
   builder: html
@@ -22,7 +21,6 @@ python:
       path: .
       extra_requirements:
         - docs
-        - all
 
 # Don't build any extra formats
 formats: []