diff --git a/Project.toml b/Project.toml
index 01607ba..37c2553 100644
--- a/Project.toml
+++ b/Project.toml
@@ -8,6 +8,7 @@ DocStringExtensions = "ffbed154-4ef7-542d-bbb7-c09d3a79fcae"
 InteractiveUtils = "b77e0a4c-d291-57a0-90e8-8db25a27a240"
 
 [compat]
+DocStringExtensions = "0.9"
 julia = "1"
 
 [extras]