diff --git a/.github/workflows/test-sim.yml b/.github/workflows/test-sim.yml
index 74f19be3af99..a8a9e86b68c8 100644
--- a/.github/workflows/test-sim.yml
+++ b/.github/workflows/test-sim.yml
@@ -19,7 +19,7 @@ on:
 
 env:
   GETH_DOCKER_IMAGE: ethereum/client-go:v1.11.6
-  LIGHTHOUSE_DOCKER_IMAGE: sigp/lighthouse:latest-amd64-unstable-dev
+  LIGHTHOUSE_DOCKER_IMAGE: sigp/lighthouse:v4.3.0
   NETHERMIND_DOCKER_IMAGE: nethermind/nethermind:1.18.0
 
 jobs: