diff --git a/.github/workflows/lighty-rnc-app/simulator/Dockerfile b/.github/workflows/lighty-rnc-app/simulator/Dockerfile
index 53399eacf..a92df6fe5 100644
--- a/.github/workflows/lighty-rnc-app/simulator/Dockerfile
+++ b/.github/workflows/lighty-rnc-app/simulator/Dockerfile
@@ -1,4 +1,4 @@
-ARG SIMULATOR_VERSION="18.2.0"
+ARG SIMULATOR_VERSION="18.4.0"
 
 FROM alpine:3.19.1 as clone