diff --git a/Project.toml b/Project.toml
index 4740255..7e2606c 100644
--- a/Project.toml
+++ b/Project.toml
@@ -12,7 +12,7 @@ Printf = "de0858da-6303-5e67-8744-51eddeeeb8d7"
 [compat]
 AbstractPlotting = "0.10, 0.11"
 Colors = "0.12"
-GR = "0.46, 0.47, 0.48, 0.49, 0.50"
+GR = "0.46, 0.47, 0.48, 0.49, 0.50, 0.51"
 julia = "1"
 
 [extras]