diff --git a/Makefile b/Makefile
index 127c47c9..08f8121c 100644
--- a/Makefile
+++ b/Makefile
@@ -252,8 +252,14 @@ proto-format:
 ###############################################################################
 ###                                V3 setup                                 ###
 ###############################################################################
-build-v4:
-	docker build -t migalood:latest .
+build-linux:
+	mkdir -p $(BUILDDIR)
+	docker build --platform linux/amd64 --tag migalood ./
+	docker create --platform limux/amd64 --name temp migalood:latest 
+	docker cp temp:/usr/bin/migalood $(BUILDDIR)/
+	docker rm temp
+
+
 
 build-v3:
 	docker build -t migaloodv3 -f migalood-v3/Dockerfile .
@@ -305,3 +311,7 @@ build-cosmovisor-linux:
 
 build-migalood-env:
 	$(MAKE) -C contrib/migalood-env migalood-upgrade-env
+	
+
+upgrade-test:
+	bash contrib/updates/prepare_cosmovisor.sh $(BUILDDIR) ${TESTNET_NVAL} ${TESTNET_CHAINID}
\ No newline at end of file
diff --git a/contrib/updates/prepare_cosmovisor.sh b/contrib/updates/prepare_cosmovisor.sh
new file mode 100755
index 00000000..b21cd3c8
--- /dev/null
+++ b/contrib/updates/prepare_cosmovisor.sh
@@ -0,0 +1,37 @@
+#!/bin/bash
+
+# this bash will prepare cosmosvisor to the build folder so that it can perform upgrade
+# this script is supposed to be run by Makefile
+
+# These fields should be fetched automatically in the future
+# Need to do more upgrade to see upgrade patterns
+OLD_VERSION=v3.0.4
+# this command will retrieve the folder with the largest number in format v<number>
+SOFTWARE_UPGRADE_NAME=$(ls -d -- ./app/upgrades/v* | sort -Vr | head -n 1 | xargs basename)
+BUILDDIR=$1
+TESTNET_NVAL=$2
+TESTNET_CHAINID=$3
+
+# check if BUILDDIR is set
+if [ -z "$BUILDDIR" ]; then
+    echo "BUILDDIR is not set"
+    exit 1
+fi
+
+# install old binary if not exist
+if [ ! -f "_build/$OLD_VERSION.zip" ] &> /dev/null
+then
+    mkdir -p _build/old
+    wget -c "https://github.com/White-Whale-Defi-Platform/migaloo-chain/archive/refs/tags/${OLD_VERSION}.zip" -O _build/${OLD_VERSION}.zip
+    unzip _build/${OLD_VERSION}.zip -d _build
+fi
+
+
+if [ ! -f "$BUILDDIR/$OLD_VERSION.zip" ] &> /dev/null
+then
+    mkdir -p BUILDDIR/old
+    docker build --platform linux/amd64 --no-cache --build-arg source=./_build/migaloo-chain-${OLD_VERSION:1}/ --tag migaloo/migalood.binary.old . 
+    docker create --platform linux/amd64 --name old-temp migaloo/migalood.binary.old:latest
+    docker cp old-temp:/usr/local/bin/migalood $BUILDDIR/old/
+    docker rm old-temp
+fi
\ No newline at end of file