diff --git a/Project.toml b/Project.toml
index 71fd0597..68cbda67 100644
--- a/Project.toml
+++ b/Project.toml
@@ -34,7 +34,7 @@ Dictionaries = "0.4"
 Distributions = "0.25"
 Documenter = "1.0"
 GraphPlot = "0.5, 0.6"
-GraphViz = "0.2"
+GraphViz = "0.2, 0.3"
 MacroTools = "0.5"
 MetaGraphsNext = "0.6, 0.7"
 NamedTupleTools = "0.14"