diff --git a/.github/workflows/lighty-rnc-app/simulator/Dockerfile b/.github/workflows/lighty-rnc-app/simulator/Dockerfile
index b0a8231739..183bcddcdd 100644
--- a/.github/workflows/lighty-rnc-app/simulator/Dockerfile
+++ b/.github/workflows/lighty-rnc-app/simulator/Dockerfile
@@ -1,7 +1,7 @@
 FROM alpine:3.18.3 as clone
 RUN apk add git
 WORKDIR /netconf-simulator
-RUN git clone https://github.com/PANTHEONtech/lighty-netconf-simulator.git -b 18.1.0
+RUN git clone https://github.com/PANTHEONtech/lighty-netconf-simulator.git -b 19.0.0
 
 FROM maven:3.8-eclipse-temurin-17-alpine as build
 WORKDIR /lighty-netconf-simulator