diff --git a/test_requirements.txt b/test_requirements.txt
index 15c2f57..dfec103 100644
--- a/test_requirements.txt
+++ b/test_requirements.txt
@@ -8,7 +8,7 @@
 # messages may depend on package versions, so we pin versions
 # for reproducible testing.)
 coverage==7.13.5
-dnspython==2.8.0
+dnspython==2.9.0
 exceptiongroup==1.3.1
 flake8==7.3.0
 idna==3.15