diff --git a/CI.md b/CI.md
index 76167c35..dea5292a 100644
--- a/CI.md
+++ b/CI.md
@@ -1,10 +1,10 @@
 This is a summary of the Python versions and platforms covered by the different CI platforms:
 
-|          | 3.7                   | 3.8                       | 3.9      | 3.10           |
-|----------|-----------------------|---------------------------|----------|----------------|
-| Linux    | AppVeyor¹ / Travis CI | Azure Pipelines / GitLab  | CircleCI | GitHub Actions |
-| macOS    | AppVeyor¹ / Travis CI | Azure Pipelines           | CircleCI | GitHub Actions |
-| Windows  | AppVeyor¹ / Travis CI | Azure Pipelines           |          | GitHub Actions |
+|          | 3.7                   | 3.8                       | 3.9      | 3.10                      |
+|----------|-----------------------|---------------------------|----------|---------------------------|
+| Linux    | AppVeyor¹ / Travis CI | Azure Pipelines / GitLab  | CircleCI | GitHub Actions, Cirrus CI |
+| macOS    | AppVeyor¹ / Travis CI | Azure Pipelines           | CircleCI | GitHub Actions, Cirrus CI |
+| Windows  | AppVeyor¹ / Travis CI | Azure Pipelines           |          | GitHub Actions, Cirrus CI |
 
 > ¹ AppVeyor only runs the "basic" test to reduce load.