diff --git a/Project.toml b/Project.toml
index b861fdf..2599739 100644
--- a/Project.toml
+++ b/Project.toml
@@ -9,8 +9,10 @@ JSON = "682c06a0-de6a-54ab-a142-c8b1cf79cde6"
 REPL = "3fa0cd96-eef1-5676-8a61-b3b8758bbffb"
 
 [compat]
+Base64 = "<0.0.1, 1"
 IOCapture = "0.2"
 JSON = "0.18, 0.19, 0.20, 0.21, 1"
+REPL = "<0.0.1, 1"
 julia = "1"
 
 [extras]