diff --git a/README.md b/README.md
index a5f3773a..d7565e32 100644
--- a/README.md
+++ b/README.md
@@ -50,7 +50,8 @@ Include support for all extensions and interfaces:
 
 Individual optional installation extras are:
 
-    graphql, openapi
+- graphql: Adds GraphQL support via Graphene
+- openapi: Adds OpenAPI/Swagger interface support
 
 Or, install directly from the repository:
 
diff --git a/docs/source/tour.rst b/docs/source/tour.rst
index 792ac927..2548ff66 100644
--- a/docs/source/tour.rst
+++ b/docs/source/tour.rst
@@ -66,10 +66,16 @@ Responder comes with built-in support for OpenAPI / marshmallow::
 
     pip install 'responder[openapi]'
 
-New in Responder `1.4.0`::
+.. note::
+
+    If you're upgrading from a previous version, note that the OpenAPI module
+    has been renamed from ``responder.ext.schema`` to ``responder.ext.openapi``.
+    Update your imports accordingly.
+
+New in Responder 1.4.0::
 
     import responder
-    from responder.ext.schema import Schema as OpenAPISchema
+    from responder.ext.openapi import OpenAPISchema
     from marshmallow import Schema, fields
 
     contact = {
@@ -200,12 +206,11 @@ Responder can automatically supply API Documentation for you. Using the example
 
 The new and recommended way::
 
-    ...
-    from responder.ext.schema import Schema
-    ...
+    from responder.ext.openapi import OpenAPISchema
+
     api = responder.API()
 
-    schema = Schema(
+    schema = OpenAPISchema(
         app=api,
         title="Web Service",
         version="1.0",
@@ -220,7 +225,7 @@ The new and recommended way::
     )
     
 
-The old way ::
+The old way::
 
     api = responder.API(
         title="Web Service",
diff --git a/responder/api.py b/responder/api.py
index 62beeb3d..81bb831b 100644
--- a/responder/api.py
+++ b/responder/api.py
@@ -109,7 +109,13 @@ def __init__(
         self.add_middleware(SessionMiddleware, secret_key=self.secret_key)
 
         if openapi or docs_route:
-            from .ext.schema import OpenAPISchema
+            try:
+                from .ext.openapi import OpenAPISchema
+            except ImportError as ex:
+                raise ImportError(
+                    "The dependencies for the OpenAPI extension are not installed. "
+                    "Install them using: pip install 'responder[openapi]'"
+                ) from ex
 
             self.openapi = OpenAPISchema(
                 app=self,
diff --git a/responder/ext/schema/__init__.py b/responder/ext/openapi/__init__.py
similarity index 100%
rename from responder/ext/schema/__init__.py
rename to responder/ext/openapi/__init__.py
diff --git a/responder/ext/schema/docs/elements.html b/responder/ext/openapi/docs/elements.html
similarity index 100%
rename from responder/ext/schema/docs/elements.html
rename to responder/ext/openapi/docs/elements.html
diff --git a/responder/ext/schema/docs/rapidoc.html b/responder/ext/openapi/docs/rapidoc.html
similarity index 100%
rename from responder/ext/schema/docs/rapidoc.html
rename to responder/ext/openapi/docs/rapidoc.html
diff --git a/responder/ext/schema/docs/redoc.html b/responder/ext/openapi/docs/redoc.html
similarity index 100%
rename from responder/ext/schema/docs/redoc.html
rename to responder/ext/openapi/docs/redoc.html
diff --git a/responder/ext/schema/docs/swagger_ui.html b/responder/ext/openapi/docs/swagger_ui.html
similarity index 100%
rename from responder/ext/schema/docs/swagger_ui.html
rename to responder/ext/openapi/docs/swagger_ui.html
diff --git a/setup.py b/setup.py
index 17f5f902..c9add646 100644
--- a/setup.py
+++ b/setup.py
@@ -134,7 +134,7 @@ def run(self):
         ],
         "full": ["responder[graphql,openapi]"],
         "graphql": ["graphene"],
-        "openapi": ["apispec>=1.0.0b1"],
+        "openapi": ["apispec>=1.0.0"],
         "release": ["build", "twine"],
         "test": ["flask", "mypy", "pytest", "pytest-cov", "pytest-mock"],
     },
diff --git a/tests/test_responder.py b/tests/test_responder.py
index 730a9f9c..0ce99319 100644
--- a/tests/test_responder.py
+++ b/tests/test_responder.py
@@ -326,7 +326,7 @@ def test_schema_generation_explicit(needs_openapi):
     import marshmallow
 
     import responder
-    from responder.ext.schema import OpenAPISchema
+    from responder.ext.openapi import OpenAPISchema
 
     api = responder.API()
 
@@ -393,7 +393,7 @@ def test_documentation_explicit(needs_openapi):
     import marshmallow
 
     import responder
-    from responder.ext.schema import OpenAPISchema
+    from responder.ext.openapi import OpenAPISchema
 
     description = "This is a sample server for a pet store."
     terms_of_service = "http://example.com/terms/"