diff --git a/examples/todo/Cargo.toml b/examples/todo/Cargo.toml
index 687535aa..2565f0e7 100644
--- a/examples/todo/Cargo.toml
+++ b/examples/todo/Cargo.toml
@@ -10,11 +10,11 @@ rocket_codegen = { path = "../../core/codegen" }
 serde = "1.0"
 serde_json = "1.0"
 serde_derive = "1.0"
-diesel = { version = "<= 1.2", features = ["sqlite", "r2d2"] }
+diesel = { version = "1.3", features = ["sqlite", "r2d2"] }
 
 [dev-dependencies]
-parking_lot = {version = "0.5", features = ["nightly"]}
-rand = "0.4"
+parking_lot = { version = "0.6", features = ["nightly"] }
+rand = "0.5"
 
 [dependencies.rocket_contrib]
 path = "../../contrib/lib"