diff --git a/start_ocean.sh b/start_ocean.sh
index 256bb20..605f389 100755
--- a/start_ocean.sh
+++ b/start_ocean.sh
@@ -28,10 +28,10 @@ COMPOSE_DIR="${DIR}/compose-files"
 
 # Default versions of Aquarius, Provider
 
-export AQUARIUS_VERSION=${AQUARIUS_VERSION:-v4main}
-export PROVIDER_VERSION=${PROVIDER_VERSION:-v4main}
+export AQUARIUS_VERSION=${AQUARIUS_VERSION:-v4.0.3}
+export PROVIDER_VERSION=${PROVIDER_VERSION:-v1.0.3}
 export SUBGRAPH_VERSION=${SUBGRAPH_VERSION:-v4main}
-export CONTRACTS_VERSION=${CONTRACTS_VERSION:-v4main_postaudit}
+export CONTRACTS_VERSION=${CONTRACTS_VERSION:-v1.0.0-alpha.28}
 export RBAC_VERSION=${RBAC_VERSION:-next}
 
 export OPERATOR_SERVICE_VERSION=${OPERATOR_SERVICE_VERSION:-v4main}