diff --git a/test/Project.toml b/test/Project.toml
index 445f5e3..2ff686d 100644
--- a/test/Project.toml
+++ b/test/Project.toml
@@ -14,7 +14,7 @@ XUnit = "3e3c03f2-1a94-11e9-2981-050a4ca824ab"
 [compat]
 Aqua = "0.5.5, 0.6.5"
 Distributions = "0.25.76"
-FittedItemBanks = "^0.3"
+FittedItemBanks = "^0.6"
 Optim = "1.7.3"
 PsychometricsBazaarBase = "^0.5, ^0.6, ^0.7"
 julia = "^1.8"