diff --git a/Project.toml b/Project.toml
index 72f1163..fc4a86c 100644
--- a/Project.toml
+++ b/Project.toml
@@ -46,7 +46,7 @@ DataStructures = "0.18"
 DensityInterface = "0.4"
 DiffResults = "1"
 Distributions = "0.23, 0.24, 0.25"
-FillArrays = "0.11, 0.12, 0.13"
+FillArrays = "0.11, 0.12, 0.13, 1"
 IfElse = "0.1"
 JuliaVariables = "0.2"
 MLStyle = "0.3,0.4"