diff --git a/test/Project.toml b/test/Project.toml
index 8c057e260..eeb8b0815 100644
--- a/test/Project.toml
+++ b/test/Project.toml
@@ -22,5 +22,5 @@ ForwardDiff = "0.10"
 Kronecker = "0.4"
 PDMats = "0.9, 0.10"
 ReverseDiff = "1.2"
-SpecialFunctions = "0.10"
+SpecialFunctions = "0.10, 1.1"
 Zygote = "0.4, 0.5"