diff --git a/requirements/dev.txt b/requirements/dev.txt
index f9361e1..97a1fd7 100644
--- a/requirements/dev.txt
+++ b/requirements/dev.txt
@@ -38,7 +38,7 @@ greenlet==3.0.3
     #   sqlalchemy
 hubspot-api-client==11.1.0
     # via -r prod.txt
-idna==3.10
+idna==3.15
     # via
     #   -r prod.txt
     #   requests
diff --git a/requirements/functests.txt b/requirements/functests.txt
index d0f5db1..f46635e 100644
--- a/requirements/functests.txt
+++ b/requirements/functests.txt
@@ -40,7 +40,7 @@ httpretty==1.1.4
     # via -r functests.in
 hubspot-api-client==11.1.0
     # via -r prod.txt
-idna==3.10
+idna==3.15
     # via
     #   -r prod.txt
     #   requests
diff --git a/requirements/lint.txt b/requirements/lint.txt
index 39b886f..272f509 100644
--- a/requirements/lint.txt
+++ b/requirements/lint.txt
@@ -75,7 +75,7 @@ hubspot-api-client==11.1.0
     # via
     #   -r functests.txt
     #   -r tests.txt
-idna==3.10
+idna==3.15
     # via
     #   -r functests.txt
     #   -r tests.txt
diff --git a/requirements/prod.txt b/requirements/prod.txt
index ad9c0b9..f24807f 100644
--- a/requirements/prod.txt
+++ b/requirements/prod.txt
@@ -19,7 +19,7 @@ greenlet==3.0.3
     # via sqlalchemy
 hubspot-api-client==11.1.0
     # via -r prod.in
-idna==3.10
+idna==3.15
     # via requests
 importlib-resources==6.5.2
     # via
diff --git a/requirements/template.txt b/requirements/template.txt
index a0b7442..2428190 100644
--- a/requirements/template.txt
+++ b/requirements/template.txt
@@ -22,7 +22,7 @@ click==8.1.7
     #   pip-tools
 cookiecutter==2.6.0
     # via -r template.in
-idna==3.7
+idna==3.15
     # via requests
 jinja2==3.1.6
     # via cookiecutter
diff --git a/requirements/tests.txt b/requirements/tests.txt
index 8b9908c..5008ad8 100644
--- a/requirements/tests.txt
+++ b/requirements/tests.txt
@@ -44,7 +44,7 @@ httpretty==1.1.4
     # via -r tests.in
 hubspot-api-client==11.1.0
     # via -r prod.txt
-idna==3.10
+idna==3.15
     # via
     #   -r prod.txt
     #   requests
diff --git a/requirements/typecheck.txt b/requirements/typecheck.txt
index c9ff82e..b077a28 100644
--- a/requirements/typecheck.txt
+++ b/requirements/typecheck.txt
@@ -28,7 +28,7 @@ greenlet==3.0.3
     #   sqlalchemy
 hubspot-api-client==11.1.0
     # via -r prod.txt
-idna==3.10
+idna==3.15
     # via
     #   -r prod.txt
     #   requests