diff --git a/test/Project.toml b/test/Project.toml
index d016166f..8070cf13 100644
--- a/test/Project.toml
+++ b/test/Project.toml
@@ -14,7 +14,7 @@ Zygote = "e88e6eb3-aa80-5325-afca-941959d7151f"
 
 [compat]
 Distributions = "0.19, 0.20, 0.21, 0.22, 0.23, 0.24, 0.25"
-Documenter = "0.24, 0.25, 0.26, 0.27"
+Documenter = "0.24, 0.25, 0.26, 0.27, 1"
 FillArrays = "0.11, 0.12, 0.13, 1"
 FiniteDifferences = "0.9.6, 0.10, 0.11, 0.12"
 PDMats = "0.11"