diff --git a/modules/openapi-generator/src/main/resources/python-legacy/setup.mustache b/modules/openapi-generator/src/main/resources/python-legacy/setup.mustache
index 71f0e122b933..efb15b97e7a2 100644
--- a/modules/openapi-generator/src/main/resources/python-legacy/setup.mustache
+++ b/modules/openapi-generator/src/main/resources/python-legacy/setup.mustache
@@ -36,7 +36,8 @@ setup(
     packages=find_packages(exclude=["test", "tests"]),
     include_package_data=True,
     {{#licenseInfo}}license="{{.}}",
-    {{/licenseInfo}}long_description="""\
+    {{/licenseInfo}}long_description_content_type='text/markdown',
+    long_description="""\
     {{appDescription}}  # noqa: E501
     """
 )
diff --git a/samples/client/petstore/python-asyncio/setup.py b/samples/client/petstore/python-asyncio/setup.py
index b9fc72e727fe..974fea3373fe 100644
--- a/samples/client/petstore/python-asyncio/setup.py
+++ b/samples/client/petstore/python-asyncio/setup.py
@@ -36,6 +36,7 @@
     packages=find_packages(exclude=["test", "tests"]),
     include_package_data=True,
     license="Apache-2.0",
+    long_description_content_type='text/markdown',
     long_description="""\
     This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\  # noqa: E501
     """
diff --git a/samples/client/petstore/python-legacy/setup.py b/samples/client/petstore/python-legacy/setup.py
index 217134e79476..58abfa11b8df 100644
--- a/samples/client/petstore/python-legacy/setup.py
+++ b/samples/client/petstore/python-legacy/setup.py
@@ -35,6 +35,7 @@
     packages=find_packages(exclude=["test", "tests"]),
     include_package_data=True,
     license="Apache-2.0",
+    long_description_content_type='text/markdown',
     long_description="""\
     This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\  # noqa: E501
     """
diff --git a/samples/client/petstore/python-tornado/setup.py b/samples/client/petstore/python-tornado/setup.py
index c6e7ddc51bf4..db9d6f380256 100644
--- a/samples/client/petstore/python-tornado/setup.py
+++ b/samples/client/petstore/python-tornado/setup.py
@@ -36,6 +36,7 @@
     packages=find_packages(exclude=["test", "tests"]),
     include_package_data=True,
     license="Apache-2.0",
+    long_description_content_type='text/markdown',
     long_description="""\
     This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\  # noqa: E501
     """
diff --git a/samples/openapi3/client/petstore/python-legacy/setup.py b/samples/openapi3/client/petstore/python-legacy/setup.py
index 217134e79476..58abfa11b8df 100755
--- a/samples/openapi3/client/petstore/python-legacy/setup.py
+++ b/samples/openapi3/client/petstore/python-legacy/setup.py
@@ -35,6 +35,7 @@
     packages=find_packages(exclude=["test", "tests"]),
     include_package_data=True,
     license="Apache-2.0",
+    long_description_content_type='text/markdown',
     long_description="""\
     This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\  # noqa: E501
     """