diff --git a/Project.toml b/Project.toml
index 5503982..76dc350 100644
--- a/Project.toml
+++ b/Project.toml
@@ -11,7 +11,7 @@ Random = "9a3f8284-a2c9-5f02-9a11-845980a1fd5c"
 Statistics = "10745b16-79ce-11e8-11f9-7d13ad32a3b2"
 
 [compat]
-AbstractMCMC = "0.5"
+AbstractMCMC = "0.5, 1"
 ArrayInterface = "2"
 Distributions = "0.22, 0.23"
 julia = "1"