diff --git a/docs-requirements.txt b/docs-requirements.txt
index b5e86cf..78abbb5 100644
--- a/docs-requirements.txt
+++ b/docs-requirements.txt
@@ -18,7 +18,7 @@ cryptography==46.0.5
     # via -r docs-requirements.in
 docutils==0.21.2
     # via sphinx
-idna==3.11
+idna==3.15
     # via
     #   -r docs-requirements.in
     #   requests
diff --git a/lint-requirements.txt b/lint-requirements.txt
index e5e9b6b..b578f04 100644
--- a/lint-requirements.txt
+++ b/lint-requirements.txt
@@ -28,7 +28,7 @@ filelock==3.24.3
     #   virtualenv
 humanize==4.15.0
     # via nox
-idna==3.11
+idna==3.15
     # via -r lint-requirements.in
 iniconfig==2.3.0
     # via pytest
diff --git a/test-requirements.txt b/test-requirements.txt
index efbb8e1..66fc3a0 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -17,7 +17,7 @@ cryptography==46.0.5
     #   service-identity
 exceptiongroup==1.3.1
     # via pytest
-idna==3.11
+idna==3.15
     # via -r test-requirements.in
 iniconfig==2.3.0
     # via pytest