diff --git a/Project.toml b/Project.toml
index 88c914d..86fa4d7 100644
--- a/Project.toml
+++ b/Project.toml
@@ -19,6 +19,6 @@ AbstractGPs = "0.3, 0.4, 0.5"
 BlockDiagonals = "0.1.22"
 ChainRulesCore = "1"
 Distributions = "0.25"
-FillArrays = "0.12, 0.13"
+FillArrays = "0.12, 0.13, 1"
 KernelFunctions = "0.10"
 julia = "1"