diff --git a/requirements.txt b/requirements.txt
index 7f9dc23..40049f8 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -8,7 +8,7 @@ charset-normalizer==3.3.2
 click==8.1.7
 frozenlist==1.4.1
 hiredis==2.3.2
-idna==3.6
+idna==3.7
 multidict==6.0.5
 openttd-helpers==1.4.0
 openttd-protocol==1.7.1