--- a/node/cli/src/command.rs
+++ b/node/cli/src/command.rs
@@ -51,7 +51,7 @@
 impl SubstrateCli for Cli {
 	// TODO use args
 	fn impl_name() -> String {
-		"Opal Node".into()
+		"Quartz Node".into()
 	}
 
 	fn impl_version() -> String {
@@ -60,7 +60,7 @@
 	// TODO use args
 	fn description() -> String {
 		format!(
-			"Opal Node\n\nThe command-line arguments provided first will be \
+			"Quartz Node\n\nThe command-line arguments provided first will be \
 		passed to the parachain node, while the arguments provided after -- will be passed \
 		to the relaychain node.\n\n\
 		{} [parachain-args] -- [relaychain-args]",
@@ -93,7 +93,7 @@
 impl SubstrateCli for RelayChainCli {
 	// TODO use args
 	fn impl_name() -> String {
-		"Opal Node".into()
+		"Quartz Node".into()
 	}
 
 	fn impl_version() -> String {
@@ -101,7 +101,7 @@
 	}
 	// TODO use args
 	fn description() -> String {
-		"Opal Node\n\nThe command-line arguments provided first will be \
+		"Quartz Node\n\nThe command-line arguments provided first will be \
 		passed to the parachain node, while the arguments provided after -- will be passed \
 		to the relaychain node.\n\n\
 		parachain-collator [parachain-args] -- [relaychain-args]"
--- a/runtime/src/lib.rs
+++ b/runtime/src/lib.rs
@@ -144,8 +144,8 @@
 
 /// This runtime version.
 pub const VERSION: RuntimeVersion = RuntimeVersion {
-	spec_name: create_runtime_str!("opal"),
-	impl_name: create_runtime_str!("opal"),
+	spec_name: create_runtime_str!("quartz"),
+	impl_name: create_runtime_str!("quartz"),
 	authoring_version: 1,
 	spec_version: 914000,
 	impl_version: 1,
@@ -233,7 +233,7 @@
 		.avg_block_initialization(AVERAGE_ON_INITIALIZE_RATIO)
 		.build_or_panic();
 	pub const Version: RuntimeVersion = VERSION;
-	pub const SS58Prefix: u8 = 42;
+	pub const SS58Prefix: u8 = 255;
 }
 
 parameter_types! {