diff --git a/flake.lock b/flake.lock
index 42952374..2e819fa1 100644
Binary files a/flake.lock and b/flake.lock differ
diff --git a/src/gateway/events/Connection.ts b/src/gateway/events/Connection.ts
index 1991ebbe..e2135a13 100644
--- a/src/gateway/events/Connection.ts
+++ b/src/gateway/events/Connection.ts
@@ -33,7 +33,12 @@ let erlpack: ErlpackType | null = null;
 try {
 	erlpack = require("erlpack") as ErlpackType;
 } catch (e) {
-	// empty
+	console.log("Failed to import erlpack: ", e);
+	try {
+		erlpack = require("@yukikaze-bot/erlpack") as ErlpackType;
+	} catch (e) {
+		console.log("Failed to import @yukikaze-bot/erlpack: ", e);
+	}
 }
 
 // TODO: check rate limit
diff --git a/src/gateway/events/Message.ts b/src/gateway/events/Message.ts
index 52d9edd8..b21965ce 100644
--- a/src/gateway/events/Message.ts
+++ b/src/gateway/events/Message.ts
@@ -31,7 +31,12 @@ let erlpack: ErlpackType | null = null;
 try {
 	erlpack = require("erlpack") as ErlpackType;
 } catch (e) {
-	// empty
+	console.log("Failed to import erlpack: ", e);
+	try {
+		erlpack = require("@yukikaze-bot/erlpack") as ErlpackType;
+	} catch (e) {
+		console.log("Failed to import @yukikaze-bot/erlpack: ", e);
+	}
 }
 
 export async function Message(this: WebSocket, buffer: WS.Data) {
diff --git a/src/gateway/util/Send.ts b/src/gateway/util/Send.ts
index 57f87d8b..a1be8398 100644
--- a/src/gateway/util/Send.ts
+++ b/src/gateway/util/Send.ts
@@ -25,7 +25,12 @@ let erlpack: ErlpackType | null = null;
 try {
 	erlpack = require("erlpack") as ErlpackType;
 } catch (e) {
-	// empty
+	console.log("Failed to import erlpack: ", e);
+	try {
+		erlpack = require("@yukikaze-bot/erlpack") as ErlpackType;
+	} catch (e) {
+		console.log("Failed to import @yukikaze-bot/erlpack: ", e);
+	}
 }
 
 // don't care