diff --git a/src/utils/environment.ts b/src/utils/environment.ts
index c9706cbfc6..55050a497c 100644
--- a/src/utils/environment.ts
+++ b/src/utils/environment.ts
@@ -1,11 +1,12 @@
 import { ARK } from "@ardenthq/sdk-ark";
 import { Environment } from "@ardenthq/sdk-profiles";
 import { Mainsail } from "@ardenthq/sdk-mainsail";
+import { StubStorage } from "@/tests/mocks";
 import { connectedTransport as ledgerTransportFactory } from "@/app/contexts/Ledger/transport";
 import { httpClient } from "@/app/services";
-import { StubStorage } from "@/tests/mocks";
-import { isE2E, isUnit } from "@/utils/test-helpers";
 import { initializeArkNetworks } from "@/utils/migrations/initialize-ark-networks";
+import { initializeMainsailNetworks } from "./migrations/initialize-mainsail-networks";
+import { isE2E, isUnit } from "@/utils/test-helpers";
 import { updateArkConstants } from "@/utils/migrations/update-ark-constants";
 import { updateArkNethashes } from "@/utils/migrations/update-ark-nethashes";
 
@@ -27,8 +28,9 @@ export const initializeEnvironment = (): Environment => {
 			"0.0.9": initializeArkNetworks,
 			"1.1.0": updateArkConstants,
 			"1.2.0": updateArkNethashes,
+			"1.2.1": initializeMainsailNetworks,
 		},
-		"1.2.0",
+		"1.2.1",
 	);
 
 	return env;
diff --git a/src/utils/migrations/initialize-mainsail-networks.ts b/src/utils/migrations/initialize-mainsail-networks.ts
new file mode 100644
index 0000000000..fd0ab5f1be
--- /dev/null
+++ b/src/utils/migrations/initialize-mainsail-networks.ts
@@ -0,0 +1,13 @@
+import { Mainsail } from "@ardenthq/sdk-mainsail";
+
+export const initializeMainsailNetworks = ({ data }) => {
+	console.log("mainsail network")
+	if (!data.networks) {
+		data.networks = {};
+	}
+
+	data.networks.mainsail = {
+		devnet: Mainsail.manifest.networks["mainsail.devnet"],
+	};
+	console.log({ data })
+};