diff --git a/requirements.txt b/requirements.txt
index 5df0e83c..3ce6fe82 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -14,7 +14,7 @@ charset-normalizer==3.1.0
     # via requests
 click==8.1.6
     # via -r requirements.in
-idna==2.8
+idna==3.7
     # via requests
 jsonref==1.0.0.post1
     # via -r requirements.in
diff --git a/requirements_dev.txt b/requirements_dev.txt
index 6aa0f08a..204353dd 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -46,7 +46,7 @@ flake8==3.9.1
     # via -r requirements_dev.in
 identify==2.2.4
     # via pre-commit
-idna==2.8
+idna==3.7
     # via
     #   -r requirements.txt
     #   requests