diff --git a/requirements/in/constraints.in b/requirements/in/constraints.in
index 3c9d550..47be256 100644
--- a/requirements/in/constraints.in
+++ b/requirements/in/constraints.in
@@ -21,7 +21,7 @@ colorama>=0.4.6,<1.0.0
 filelock>=3.19.0,<4.0.0
 
 # Handles Internationalized Domain Names; indirect dependency of requests, urllib3, and other networking libraries.
-idna>=3.10,<4.0.0
+idna>=3.20,<4.0.0
 
 # Used for parsing INI files; required by pytest for configuration file support.
 iniconfig>=2.1.0,<3.0.0