diff --git a/Project.toml b/Project.toml
index 4856294..305e171 100644
--- a/Project.toml
+++ b/Project.toml
@@ -18,6 +18,12 @@ Statistics = "10745b16-79ce-11e8-11f9-7d13ad32a3b2"
 
 [compat]
 GeometricalPredicates = "0.4"
+GR = "0.47"
+Interpolations = "0.12"
+PlotlyJS = "0.13"
+Plots = "0.29"
+GMT = "0.16"
+ORCA = "0.3"
 julia = "1.3"
 
 [extras]