diff --git a/requirements.txt b/requirements.txt
index af79bb8..54a0f77 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -45,7 +45,7 @@ opt-einsum==3.2.1
 protobuf==3.12.2
 pyasn1==0.4.8
 pyasn1-modules==0.2.8
-pycares==3.1.1
+pycares==4.2.0
 pycparser==2.19
 pymongo==3.10.1
 pyOpenSSL==19.1.0