diff --git a/docs/Project.toml b/docs/Project.toml
index 1a3bec39..82ed834f 100644
--- a/docs/Project.toml
+++ b/docs/Project.toml
@@ -11,7 +11,7 @@ MarkdownAST = "d0879d2d-cac2-40c8-9cee-1863dc0c7391"
 Plots = "91a5bcdd-55d7-5caf-9e0b-520d859cae80"
 
 [compat]
-CTBase = "0.30"
+CTBase = "0.30, 0.29"
 Documenter = "1"
 DocumenterInterLinks = "1"
 DocumenterVitepress = "0.3"