diff --git a/Project.toml b/Project.toml
index 83399a322..028b4a62c 100644
--- a/Project.toml
+++ b/Project.toml
@@ -48,7 +48,7 @@ HypertextLiteral = "0.7, 0.8, 0.9"
 InteractiveUtils = "1"
 Logging = "1"
 LoggingExtras = "0.4, 1"
-MIMEs = "0.1"
+MIMEs = "0.1, 1"
 Malt = "1.1"
 Markdown = "1"
 MsgPack = "1.1"