diff --git a/requirements.txt b/requirements.txt
index 54139c1cd5d81..ab7bf58ea87af 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -23,7 +23,7 @@ crontab>=0.22.6
 # pin version to avoid Rust build issues: https://github.com/pyca/cryptography/issues/5771
 cryptography<3.4
 Cython                         #extended-lib
-dnspython==1.16.0              #basic-lib
+dnspython==2.6.1              #basic-lib
 docopt>=0.6.2                  #basic-lib
 elasticsearch>=7.0.0,<8.0.0
 flake8>=3.6.0                  #extended-lib