diff --git a/seafile-server-7.1-centos-amd64-http b/seafile-server-7.1-centos-amd64-http
index ce67863..bdc21bd 100644
--- a/seafile-server-7.1-centos-amd64-http
+++ b/seafile-server-7.1-centos-amd64-http
@@ -175,7 +175,7 @@ yum install epel-release -y
 yum install python3 python3-setuptools python3-pip python3-ldap memcached java-1.8.0-openjdk \
     libmemcached libreoffice-headless libreoffice-pyuno libffi-devel pwgen curl python3-devel gcc gcc-c++ -y
 
-pip3 install --timeout=3600 Pillow pylibmc captcha jinja2 sqlalchemy psd-tools \
+pip3 install --timeout=3600 Pillow pylibmc captcha jinja2 sqlalchemy==1.3.8 psd-tools \
     django-pylibmc django-simple-captcha
 
 # start memcached on system boot
diff --git a/seafile-server-7.1-ubuntu-amd64-http b/seafile-server-7.1-ubuntu-amd64-http
index c871110..4b823f3 100644
--- a/seafile-server-7.1-ubuntu-amd64-http
+++ b/seafile-server-7.1-ubuntu-amd64-http
@@ -150,7 +150,7 @@ apt-get update
 apt-get install -y python3 python3-setuptools python3-pip python3-ldap memcached openjdk-8-jre \
     libmemcached-dev libreoffice-script-provider-python libreoffice pwgen curl nginx
 
-pip3 install --timeout=3600 Pillow pylibmc captcha jinja2 sqlalchemy psd-tools \
+pip3 install --timeout=3600 Pillow pylibmc captcha jinja2 sqlalchemy==1.3.8 psd-tools \
     django-pylibmc django-simple-captcha