diff --git a/docs/Project.toml b/docs/Project.toml
index b32ced196..8e02f4ea5 100644
--- a/docs/Project.toml
+++ b/docs/Project.toml
@@ -3,5 +3,5 @@ Documenter = "e30172f5-a6a5-5a46-863b-614d45cd2de4"
 LinearSolve = "7ed4a6bd-45f5-4d41-b270-4a48e9bafcae"
 
 [compat]
-Documenter = "0.27"
+Documenter = "0.27, 1"
 LinearSolve = "1, 2"