diff --git a/stack_orchestrator/data/compose/docker-compose-mainnet-lotus.yml b/stack_orchestrator/data/compose/docker-compose-mainnet-lotus.yml
index 00d4e03d..ef93dc7a 100644
--- a/stack_orchestrator/data/compose/docker-compose-mainnet-lotus.yml
+++ b/stack_orchestrator/data/compose/docker-compose-mainnet-lotus.yml
@@ -8,7 +8,13 @@ services:
   lotus:
     environment:
       - LOTUS_API_LISTENADDRESS=/ip4/0.0.0.0/tcp/1234/http
-      - LOTUS_LIBP2P_LISTENADDRESSES="/ip4/0.0.0.0/tcp/1235 /ip6/::/tcp/1235 /ip4/0.0.0.0/udp/1235/quic-v1 /ip6/::/udp/1235/quic-v1 /ip4/0.0.0.0/udp/1235/quic-v1/webtransport /ip6/::/udp/1235/quic-v1/webtransport"
+      - LOTUS_LIBP2P_LISTENADDRESSES:
+        - /ip4/0.0.0.0/tcp/1235
+        - /ip6/::/tcp/1235
+        - /ip4/0.0.0.0/udp/1235/quic-v1
+        - /ip6/::/udp/1235/quic-v1
+        - /ip4/0.0.0.0/udp/1235/quic-v1/webtransport
+        - /ip6/::/udp/1235/quic-v1/webtransport
     image: cerc/lotus-mainnet:local
     volumes:
       - parameters:/var/tmp/filecoin-proof-parameters
diff --git a/stack_orchestrator/data/container-build/cerc-mainnet-lotus/build.sh b/stack_orchestrator/data/container-build/cerc-mainnet-lotus/build.sh
index 25f58c98..4dd2c41a 100755
--- a/stack_orchestrator/data/container-build/cerc-mainnet-lotus/build.sh
+++ b/stack_orchestrator/data/container-build/cerc-mainnet-lotus/build.sh
@@ -6,7 +6,7 @@ SCRIPT_DIR=$( cd -- "$( dirname -- "${BASH_SOURCE[0]}" )" &> /dev/null && pwd )
 git stash
 
 # Use a release version tag to match the modified Dockerfile replaced in next step
-git -C ${CERC_REPO_BASE_DIR}/lotus checkout v1.27.0-rc1-c
+git -C ${CERC_REPO_BASE_DIR}/lotus checkout master
 
 # Replace repo's Dockerfile with modified one
 cp ${SCRIPT_DIR}/Dockerfile ${CERC_REPO_BASE_DIR}/lotus/Dockerfile