diff --git a/OLPS_python/requirements.txt b/OLPS_python/requirements.txt
index 328ef4a..c8db43c 100644
--- a/OLPS_python/requirements.txt
+++ b/OLPS_python/requirements.txt
@@ -13,7 +13,7 @@ click==7.1.2
 cloudpickle==0.8.0
 colorama==0.4.1
 cryptography==2.6.1
-cvxopt==1.2.4
+cvxopt==1.2.7
 cycler==0.10.0
 decorator==4.4.0
 defusedxml==0.5.0