diff --git a/Project.toml b/Project.toml
index 782e5f4..d887115 100644
--- a/Project.toml
+++ b/Project.toml
@@ -23,6 +23,7 @@ AbstractMCMC = "0.5, 1.0.0"
 AdvancedHMC = "0.2,^0.5"
 Bijectors = "0.6, 0.7"
 Distributions = "0.22, 0.23"
+Interpolations = "0.12"
 KernelDensity = "0.5.0"
 MCMCChains = "1.0, 3.0"
 Parameters = "0.12"