diff --git a/Project.toml b/Project.toml
index 66af4fd..c221794 100644
--- a/Project.toml
+++ b/Project.toml
@@ -31,7 +31,7 @@ CachedInterpolations = "0.1"
 CenterIndexedArrays = "0.2"
 CoordinateTransformations = "0.5, 0.6"
 ForwardDiff = "0.10, 1"
-Interpolations = "0.9, 0.10, 0.11, 0.12, 0.13, 0.14, 0.15"
+Interpolations = "0.9, 0.10, 0.11, 0.12, 0.13, 0.14, 0.15, 0.16"
 Ipopt = "0.5, 0.6, 1"
 IterativeSolvers = "0.7, 0.8, 0.9"
 JuMP = "1.2"