diff --git a/Project.toml b/Project.toml
index 02e79a5..4864db9 100644
--- a/Project.toml
+++ b/Project.toml
@@ -15,7 +15,7 @@ Statistics = "10745b16-79ce-11e8-11f9-7d13ad32a3b2"
 [compat]
 BenchmarkTools = "^0.4.2, 0.5, 0.6, 0.7, 1"
 Cassette = "^0.2.3, 0.3.2"
-PrettyTables = "^0.12, 1"
+PrettyTables = "^0.12, 1, 2"
 julia = "^1"
 
 [extras]