diff --git a/contrib/Cargo.toml b/contrib/Cargo.toml
index 1c974f8f..4af2c897 100644
--- a/contrib/Cargo.toml
+++ b/contrib/Cargo.toml
@@ -22,7 +22,7 @@ serde = { version = "^0.8", optional = true }
 serde_json = { version = "^0.8", optional = true }
 
 # Templating dependencies only.
-handlebars = { version = "^0.21", optional = true, features = ["serde_type"] }
+handlebars = { version = "^0.22", optional = true, features = ["serde_type"] }
 glob = { version = "^0.2", optional = true }
 lazy_static = { version = "^0.2", optional = true }
-tera = { version = "^0.3", optional = true }
+tera = { version = "^0.4", optional = true }
diff --git a/examples/todo/Cargo.toml b/examples/todo/Cargo.toml
index b795a3a4..1226199b 100644
--- a/examples/todo/Cargo.toml
+++ b/examples/todo/Cargo.toml
@@ -11,8 +11,8 @@ lazy_static = "*"
 serde = "0.8"
 serde_json = "0.8"
 serde_derive = "0.8"
-diesel = "0.8"
-diesel_codegen = { version = "0.8", features = ["sqlite"] }
+diesel = "0.9"
+diesel_codegen = { version = "0.9", features = ["sqlite"] }
 
 [dependencies.rocket_contrib]
 path = "../../contrib"