diff --git a/requirements.txt b/requirements.txt
index 9435a83..2518c86 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -8,7 +8,7 @@ Deprecated==1.2.13
 ecdsa==0.18.0
 Flask==2.3.2
 future==0.18.3
-idna==2.7
+idna==3.7
 itsdangerous==2.1.2
 Jinja2==3.1.2
 MarkupSafe==2.1.1
diff --git a/sms/verify-signed-sms/requirements.txt b/sms/verify-signed-sms/requirements.txt
index e0120a9..0b8a096 100644
--- a/sms/verify-signed-sms/requirements.txt
+++ b/sms/verify-signed-sms/requirements.txt
@@ -9,7 +9,7 @@ Deprecated==1.2.13
 ecdsa==0.18.0
 Flask==2.3.2
 future==0.18.3
-idna==2.7
+idna==3.7
 itsdangerous==2.1.2
 Jinja2==3.1.2
 MarkupSafe==2.1.1