diff --git a/Project.toml b/Project.toml
index 7f8a63f..6357716 100644
--- a/Project.toml
+++ b/Project.toml
@@ -9,5 +9,8 @@ HTTP = "cd3eb016-35fb-5094-929b-558a96fad6f3"
 Tar = "a4e569a6-e804-4fa4-b0f3-eef7a1d5b13e"
 Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"
 
+[compat]
+julia = "1.3"
+
 [targets]
 test = ["Test", "HTTP", "Tar", "Gzip_jll"]