diff --git a/Project.toml b/Project.toml
index 84266b53..9264def4 100644
--- a/Project.toml
+++ b/Project.toml
@@ -41,7 +41,7 @@ JSON = "0.21"
 Measures = "0.3"
 NaNMath = "0.3"
 PGFPlotsX = "1.2.0"
-PlotThemes = "1"
+PlotThemes = "1, 2.0"
 PlotUtils = "0.6.5"
 RecipesBase = "1"
 RecipesPipeline = "0.1.1"