diff --git a/docs/Project.toml b/docs/Project.toml
index 865d533f..3df684c5 100644
--- a/docs/Project.toml
+++ b/docs/Project.toml
@@ -19,7 +19,7 @@ Statistics = "10745b16-79ce-11e8-11f9-7d13ad32a3b2"
 StochasticDiffEq = "789caeaf-c7a9-5a7d-9973-96adeb23e2a0"
 
 [compat]
-Adapt = "3"
+Adapt = "3, 4"
 BenchmarkTools = "1"
 CUDA = "4, 5"
 DiffEqBase = "6.120"