diff --git a/CONTRIBUTORS.md b/CONTRIBUTORS.md
index 1a04376..d8ba199 100644
--- a/CONTRIBUTORS.md
+++ b/CONTRIBUTORS.md
@@ -1,3 +1,4 @@
 - Kenneth Reitz (primary)
+- Tom Christie
 - Bruno Oliveira
 - serhii73
diff --git a/app.py b/app.py
index 7b64e92..04d9128 100644
--- a/app.py
+++ b/app.py
@@ -12,7 +12,7 @@ def hello_world():
     return "Hello, World from flask!"
 
 
-api = responder.API()
+api = responder.API(enable_hsts=True)
 api.mount("/hello", app)
 
 
@@ -40,7 +40,6 @@ schema = graphene.Schema(query=Query)
 # Alerntatively,
 api.add_route("/graph", schema, graphiql=True)
 
-
 print(
     api.session()
     .get(
diff --git a/responder/api.py b/responder/api.py
index 9b3abfb..1e377d0 100644
--- a/responder/api.py
+++ b/responder/api.py
@@ -96,6 +96,11 @@ class API:
         route = self.path_matches_route(req.path)
         resp = models.Response(req=req)
 
+        if self.enable_hsts:
+            if req.url.startswith("http://"):
+                url = req.url.replace("http://", "https://", 1)
+                self.redirect(resp, location=url)
+
         if route:
             try:
                 params = self.routes[route].incoming_matches(req.path)
@@ -149,8 +154,8 @@ class API:
         resp.status_code = HTTP_404
         resp.text = "Not found."
 
-    def redirect(self, location, *, status_code=status_codes.HTTP_301):
-        rep.status_code = status_code
+    def redirect(self, resp, location, *, status_code=status_codes.HTTP_301):
+        resp.status_code = status_code
         resp.text = f"Redirecting to: {location}"
         resp.headers.update({"Location": location})