diff --git a/msa/js-executor/server.ts b/msa/js-executor/server.ts
index 446f9d34aa..035bf77183 100644
--- a/msa/js-executor/server.ts
+++ b/msa/js-executor/server.ts
@@ -69,7 +69,7 @@ async function createQueue(serviceType: string): Promise<IQueue> {
 }
 
 [`SIGINT`, `SIGUSR1`, `SIGUSR2`, `uncaughtException`, `SIGTERM`].forEach((eventType) => {
-    process.on(eventType, async () => {
+    process.once(eventType, async () => {
         logger.info(`${eventType} signal received`);
         await exit(0);
     })
diff --git a/msa/web-ui/server.ts b/msa/web-ui/server.ts
index 2aafe879d1..5ba56add1a 100644
--- a/msa/web-ui/server.ts
+++ b/msa/web-ui/server.ts
@@ -123,7 +123,7 @@ let connections: Socket[] = [];
 })();
 
 [`SIGINT`, `SIGUSR1`, `SIGUSR2`, `uncaughtException`, `SIGTERM`].forEach((eventType) => {
-    process.on(eventType, async () => {
+    process.once(eventType, async () => {
         logger.info(`${eventType} signal received`);
         await exit(0);
     });