diff --git a/requirements/tox-pin-base.txt b/requirements/tox-pin-base.txt
index ea3fc90..aa9a602 100644
--- a/requirements/tox-pin-base.txt
+++ b/requirements/tox-pin-base.txt
@@ -2,7 +2,7 @@ attrs==23.2.0
 Automat==22.10.0
 constantly==23.10.4
 hyperlink==21.0.0
-idna==3.4
+idna==3.6
 incremental==22.10.0
 six==1.16.0
 typing-extensions==4.10.0
diff --git a/requirements/tox-tests.txt b/requirements/tox-tests.txt
index d32b7f9..ae30823 100644
--- a/requirements/tox-tests.txt
+++ b/requirements/tox-tests.txt
@@ -1 +1 @@
-idna==3.4
+idna==3.6