--- a/.env
+++ b/.env
@@ -20,7 +20,7 @@
 QUARTZ_REPLICA_FROM=wss://ws-quartz.unique.network:443
 
 UNIQUEWEST_MAINNET_BRANCH=release-v0.9.42
-WESTMINT_BUILD_BRANCH=parachains-v9425
+WESTMINT_BUILD_BRANCH=parachains-v9420
 OPAL_MAINNET_BRANCH=release-v941055
 OPAL_REPLICA_FROM=wss://ws-opal.unique.network:443