diff --git a/homeassistant/package_constraints.txt b/homeassistant/package_constraints.txt
index e95428225aa6..7a4a386348e7 100644
--- a/homeassistant/package_constraints.txt
+++ b/homeassistant/package_constraints.txt
@@ -223,3 +223,6 @@ gql<4.0.0
 
 # Pin pytest-rerunfailures to prevent accidental breaks
 pytest-rerunfailures==16.0.1
+
+# pycares 5.x is not yet compatible with aiodns
+pycares==4.11.0
diff --git a/script/gen_requirements_all.py b/script/gen_requirements_all.py
index cc89285302ac..e61021acc4d1 100755
--- a/script/gen_requirements_all.py
+++ b/script/gen_requirements_all.py
@@ -214,6 +214,9 @@ gql<4.0.0
 
 # Pin pytest-rerunfailures to prevent accidental breaks
 pytest-rerunfailures==16.0.1
+
+# pycares 5.x is not yet compatible with aiodns
+pycares==4.11.0
 """
 
 GENERATED_MESSAGE = (