diff --git a/assets/build/install.sh b/assets/build/install.sh
index bd2c814..587e0f1 100644
--- a/assets/build/install.sh
+++ b/assets/build/install.sh
@@ -35,7 +35,7 @@ wget -O s3tools.tar.gz https://github.com/s3tools/s3cmd/releases/download/v2.1.0
 echo -e "\n====> Install B2"
 apt-get install python-pip python-dev build-essential -y
 pip install --upgrade pip
-pip install --upgrade b2 #==1.4.2
+pip install --upgrade b2==2.5.1
 
 
 # # git-lfs