diff --git a/Project.toml b/Project.toml
index d0bacf2..b50d864 100644
--- a/Project.toml
+++ b/Project.toml
@@ -22,7 +22,7 @@ ForwardDiff = "0.9, 0.10"
 GaussianProcesses = "0.9, 0.10, 0.11, 0.12"
 NLopt = "0.4, 0.5, 0.6"
 Sobol = "1"
-SpecialFunctions = "0.7, 0.8, 0.9, 0.10"
+SpecialFunctions = "0.7, 0.8, 0.9, 0.10, 1.2"
 TimerOutputs = "0.5"
 julia = "1"