diff --git a/Project.toml b/Project.toml
index cf97c6bc..fd977787 100644
--- a/Project.toml
+++ b/Project.toml
@@ -12,7 +12,7 @@ RootSolvers = "7181ea78-2dcb-4de3-ab41-2b8ab5a31e74"
 
 [compat]
 CLIMAParameters = "0.6"
-DocStringExtensions = "0.8.1"
+DocStringExtensions = "0.8.1, 0.9"
 KernelAbstractions = "0.7.2"
 RootSolvers = "0.2, 0.3"
 julia = "1.5"