diff --git a/tag2domain_api/requirements.txt b/tag2domain_api/requirements.txt
index c21b424..fd70271 100644
--- a/tag2domain_api/requirements.txt
+++ b/tag2domain_api/requirements.txt
@@ -26,7 +26,7 @@ zipp==3.1.0
 python-dotenv==0.14.0
 dnspython==1.16.0
 filelock==3.0.12
-idna==2.10
+idna==3.7
 iniconfig==1.0.0
 py3-validate-email==0.2.9
 toml==0.10.1