diff --git a/Cargo.toml b/Cargo.toml
index 23942b3..fa5bf87 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -21,7 +21,7 @@ serde_qs = "0.4.5"
 url = "1"
 tap-reader = "1"
 try_from = "0.3.2"
-toml = { version = "0.4.6", optional = true }
+toml = { version = "0.5.0", optional = true }
 hyper-old-types = "0.11.0"
 envy = { version = "0.4.0", optional = true }