diff --git a/Project.toml b/Project.toml
index 079d49d6c8..d37e22db40 100644
--- a/Project.toml
+++ b/Project.toml
@@ -36,7 +36,7 @@ Adapt = "1.1, 2.0, 3.0"
 ArrayInterface = "2.7, 3.0, 4, 5"
 DataStructures = "0.18"
 DiffEqBase = "6.81.3"
-DocStringExtensions = "0.8"
+DocStringExtensions = "0.8, 0.9"
 ExponentialUtilities = "1.2"
 FastClosures = "0.3"
 FiniteDiff = "2"