diff --git a/.circleci/config.yml b/.circleci/config.yml
index e357842..fa4dd7a 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -41,7 +41,8 @@ commands:
 jobs:
   build_docs:
     working_directory: ~/repo
-    machine: true
+    machine:
+      image: ubuntu-2004:202111-02
     steps:
       - install_conda
       - build_docs
diff --git a/README.rst b/README.rst
index 88ab1ff..2ade1d3 100644
--- a/README.rst
+++ b/README.rst
@@ -15,8 +15,8 @@ You can
 
 These examples are automatically tested and deployed using CircleCI |circleci|
 
-.. _psyplot GUI: psyplot.readthedocs.io/projects/psyplot-gui
-.. _psy-view: https://psyplot.readthedocs.io/projects/psy-view
+.. _psyplot GUI: https://psyplot.github.io/psyplot-gui/
+.. _psy-view: https://psyplot.github.io/psy-view/
 
 
 .. |notebooks| image:: https://mybinder.org/badge_logo.svg
@@ -37,4 +37,4 @@ These examples are automatically tested and deployed using CircleCI |circleci|
 
 .. |circleci| image:: https://img.shields.io/circleci/build/github/psyplot/examples/main
     :alt: CircleCI
-    :target: https://app.circleci.com/pipelines/github/psyplot/examples
\ No newline at end of file
+    :target: https://app.circleci.com/pipelines/github/psyplot/examples