diff --git a/Bixi/requirements.txt b/Bixi/requirements.txt
index 8bd0e5d..a58c6c9 100644
--- a/Bixi/requirements.txt
+++ b/Bixi/requirements.txt
@@ -53,7 +53,7 @@ psycopg2==2.7.5
 psycopg2-binary==2.8.4
 ptyprocess==0.6.0
 py==1.8.0
-pycares==2.4.0
+pycares==4.2.0
 pycparser==2.19
 #pycurl==7.43.0.3
 Pygments==2.4.2