diff --git a/Project.toml b/Project.toml
index 2a0bb25b..442a29ea 100644
--- a/Project.toml
+++ b/Project.toml
@@ -39,7 +39,7 @@ GeometryTypes = "0.7"
 JSON = "0.21"
 Measures = "0.3"
 NaNMath = "0.3"
-PlotThemes = "0.2, 0.4"
+PlotThemes = "0.2, 0.4, 1.0"
 PlotUtils = "0.6.1"
 RecipesBase = "0.6, 0.7"
 Reexport = "0.2"