diff --git a/setup.py b/setup.py
index 3d97e05..077dacd 100755
--- a/setup.py
+++ b/setup.py
@@ -30,7 +30,7 @@
         "sphinxcontrib-httpdomain >= 1.5.0",
         "PyYAML >= 3.12",
         "jsonschema >= 2.5.1",
-        "m2r >= 0.2",
+        "sphinx-mdinclude >= 0.5.2",
         "picobox >= 2.2",
         "deepmerge >= 0.1",
     ],
diff --git a/sphinxcontrib/openapi/renderers/_httpdomain.py b/sphinxcontrib/openapi/renderers/_httpdomain.py
index 630e11a..fe511bb 100644
--- a/sphinxcontrib/openapi/renderers/_httpdomain.py
+++ b/sphinxcontrib/openapi/renderers/_httpdomain.py
@@ -9,7 +9,7 @@
 
 import deepmerge
 import docutils.parsers.rst.directives as directives
-import m2r
+import sphinx_mdinclude
 import requests
 import sphinx.util.logging as logging
 
@@ -184,7 +184,10 @@ def _get_schema_type(schema):
 class HttpdomainRenderer(abc.RestructuredTextRenderer):
     """Render OpenAPI v3 using `sphinxcontrib-httpdomain` extension."""
 
-    _markup_converters = {"commonmark": m2r.convert, "restructuredtext": lambda x: x}
+    _markup_converters = {
+        "commonmark": sphinx_mdinclude.convert,
+        "restructuredtext": lambda x: x,
+    }
     _response_examples_for = {"200", "201", "202", "2XX"}
     _request_parameters_order = ["header", "path", "query", "cookie"]
 
diff --git a/sphinxcontrib/openapi/utils.py b/sphinxcontrib/openapi/utils.py
index 4efb038..f779828 100644
--- a/sphinxcontrib/openapi/utils.py
+++ b/sphinxcontrib/openapi/utils.py
@@ -17,7 +17,7 @@
 import jsonschema
 import yaml
 try:
-    from m2r import convert as convert_markdown
+    from sphinx_mdinclude import convert as convert_markdown
 except ImportError:
     convert_markdown = None
 
diff --git a/tests/renderers/httpdomain/rendered/v2.0/uber.json.rst b/tests/renderers/httpdomain/rendered/v2.0/uber.json.rst
index dc27468..165fc28 100644
--- a/tests/renderers/httpdomain/rendered/v2.0/uber.json.rst
+++ b/tests/renderers/httpdomain/rendered/v2.0/uber.json.rst
@@ -36,11 +36,11 @@
 
    **Price Estimates**
 
-   .. role:: raw-html-m2r(raw)
+   .. role:: raw-html-md(raw)
       :format: html
 
 
-   The Price Estimates endpoint returns an estimated price range for each product offered at a given location. The price estimate is provided as a formatted string with the full price range and the localized currency symbol.\ :raw-html-m2r:`<br>`\ :raw-html-m2r:`<br>`\ The response also includes low and high estimates, and the `ISO 4217 <http://en.wikipedia.org/wiki/ISO_4217>`_ currency code for situations requiring currency conversion. When surge is active for a particular product, its surge_multiplier will be greater than 1, but the price estimate already factors in this multiplier.
+   The Price Estimates endpoint returns an estimated price range for each product offered at a given location. The price estimate is provided as a formatted string with the full price range and the localized currency symbol.\ :raw-html-md:`<br>`\ :raw-html-md:`<br>`\ The response also includes low and high estimates, and the `ISO 4217 <http://en.wikipedia.org/wiki/ISO_4217>`_ currency code for situations requiring currency conversion. When surge is active for a particular product, its surge_multiplier will be greater than 1, but the price estimate already factors in this multiplier.
 
    :queryparam start_latitude:
       Latitude component of start location.
@@ -154,11 +154,11 @@
 
    **User Activity**
 
-   .. role:: raw-html-m2r(raw)
+   .. role:: raw-html-md(raw)
       :format: html
 
 
-   The User Activity endpoint returns data about a user's lifetime activity with Uber. The response will include pickup locations and times, dropoff locations and times, the distance of past requests, and information about which products were requested.\ :raw-html-m2r:`<br>`\ :raw-html-m2r:`<br>`\ The history array in the response will have a maximum length based on the limit parameter. The response value count may exceed limit, therefore subsequent API requests may be necessary.
+   The User Activity endpoint returns data about a user's lifetime activity with Uber. The response will include pickup locations and times, dropoff locations and times, the distance of past requests, and information about which products were requested.\ :raw-html-md:`<br>`\ :raw-html-md:`<br>`\ The history array in the response will have a maximum length based on the limit parameter. The response value count may exceed limit, therefore subsequent API requests may be necessary.
 
    :queryparam offset:
       Offset the list of returned results by this amount. Default is zero.
diff --git a/tests/renderers/httpdomain/rendered/v2.0/uber.yaml.rst b/tests/renderers/httpdomain/rendered/v2.0/uber.yaml.rst
index 4b14064..4ec8586 100644
--- a/tests/renderers/httpdomain/rendered/v2.0/uber.yaml.rst
+++ b/tests/renderers/httpdomain/rendered/v2.0/uber.yaml.rst
@@ -36,11 +36,11 @@
 
    **Price Estimates**
 
-   .. role:: raw-html-m2r(raw)
+   .. role:: raw-html-md(raw)
       :format: html
 
 
-   The Price Estimates endpoint returns an estimated price range for each product offered at a given location. The price estimate is provided as a formatted string with the full price range and the localized currency symbol.\ :raw-html-m2r:`<br>`\ :raw-html-m2r:`<br>`\ The response also includes low and high estimates, and the `ISO 4217 <http://en.wikipedia.org/wiki/ISO_4217>`_ currency code for situations requiring currency conversion. When surge is active for a particular product, its surge_multiplier will be greater than 1, but the price estimate already factors in this multiplier.
+   The Price Estimates endpoint returns an estimated price range for each product offered at a given location. The price estimate is provided as a formatted string with the full price range and the localized currency symbol.\ :raw-html-md:`<br>`\ :raw-html-md:`<br>`\ The response also includes low and high estimates, and the `ISO 4217 <http://en.wikipedia.org/wiki/ISO_4217>`_ currency code for situations requiring currency conversion. When surge is active for a particular product, its surge_multiplier will be greater than 1, but the price estimate already factors in this multiplier.
 
    :queryparam start_latitude:
       Latitude component of start location.
@@ -154,11 +154,11 @@
 
    **User Activity**
 
-   .. role:: raw-html-m2r(raw)
+   .. role:: raw-html-md(raw)
       :format: html
 
 
-   The User Activity endpoint returns data about a user's lifetime activity with Uber. The response will include pickup locations and times, dropoff locations and times, the distance of past requests, and information about which products were requested.\ :raw-html-m2r:`<br>`\ :raw-html-m2r:`<br>`\ The history array in the response will have a maximum length based on the limit parameter. The response value count may exceed limit, therefore subsequent API requests may be necessary.
+   The User Activity endpoint returns data about a user's lifetime activity with Uber. The response will include pickup locations and times, dropoff locations and times, the distance of past requests, and information about which products were requested.\ :raw-html-md:`<br>`\ :raw-html-md:`<br>`\ The history array in the response will have a maximum length based on the limit parameter. The response value count may exceed limit, therefore subsequent API requests may be necessary.
 
    :queryparam offset:
       Offset the list of returned results by this amount. Default is zero.