diff --git a/changelog.d/9180.misc b/changelog.d/9180.misc
new file mode 100644
index 0000000000000000000000000000000000000000..69dd86110db797188225908723b4a5fadc8f5a7f
--- /dev/null
+++ b/changelog.d/9180.misc
@@ -0,0 +1 @@
+Add a `long_description_type` to the package metadata.
diff --git a/setup.py b/setup.py
index 9730afb41b5467236e048859335d901148972546..ddbe9f511af348194eb040e2e076755bc1f1ff2e 100755
--- a/setup.py
+++ b/setup.py
@@ -121,6 +121,7 @@ setup(
     include_package_data=True,
     zip_safe=False,
     long_description=long_description,
+    long_description_content_type="text/x-rst",
     python_requires="~=3.5",
     classifiers=[
         "Development Status :: 5 - Production/Stable",