diff --git a/Project.toml b/Project.toml
index 11a08d4..d6dd387 100644
--- a/Project.toml
+++ b/Project.toml
@@ -14,7 +14,7 @@ StatsBase = "2913bbd2-ae8a-5f71-8c99-4fb6c76f3a91"
 
 [compat]
 Dierckx = "0.4, 0.5"
-GR = "0.64"
+GR = "0.64, 0.65"
 Plots = "1.4"
 Requires = "1.0"
 StatsBase = "0.33"