diff --git a/poc-cb-net/scripts/build-and-run-agent-in-the-background.sh b/poc-cb-net/scripts/build-and-run-agent-in-the-background.sh
index 13e8924..069b19a 100644
--- a/poc-cb-net/scripts/build-and-run-agent-in-the-background.sh
+++ b/poc-cb-net/scripts/build-and-run-agent-in-the-background.sh
@@ -60,12 +60,12 @@ echo "Step 2-1: Download cb-network source code"
 
 cd ~
 
-# master branch in upstream
-# git clone master https://github.com/cloud-barista/cb-larva.git
+# main branch in upstream
+git clone https://github.com/cloud-barista/cb-larva.git
 # develop branch in upstream
 # git clone -b develop https://github.com/cloud-barista/cb-larva.git
 # (for development) A specific branch in forked repo
-git clone -b release-0.0.4 https://github.com/cloud-barista/cb-larva.git
+# git clone -b xxxxx https://github.com/cloud-barista/cb-larva.git
 
 
 echo "Step 2-2: Build the cb-network agent"
diff --git a/poc-cb-net/scripts/build-and-run-agent.sh b/poc-cb-net/scripts/build-and-run-agent.sh
index f4a739a..118c167 100644
--- a/poc-cb-net/scripts/build-and-run-agent.sh
+++ b/poc-cb-net/scripts/build-and-run-agent.sh
@@ -60,12 +60,12 @@ echo "Step 2-1: Download cb-network source code"
 
 cd ~
 
-# master branch in upstream
-# git clone master https://github.com/cloud-barista/cb-larva.git
+# main branch in upstream
+git clone https://github.com/cloud-barista/cb-larva.git
 # develop branch in upstream
 # git clone -b develop https://github.com/cloud-barista/cb-larva.git
 # (for development) A specific branch in forked repo
-git clone -b develop https://github.com/cloud-barista/cb-larva.git
+# git clone -b xxxxx https://github.com/cloud-barista/cb-larva.git
 
 
 echo "Step 2-2: Build the cb-network agent"