diff --git a/CHANGES.md b/CHANGES.md
index 2a3a60f82c6..29f93e6fc0a 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -8,6 +8,7 @@
 - Add new `--workers` parameter (#2514)
 - Fixed feature detection for positional-only arguments in lambdas (#2532)
 - Bumped typed-ast version minimum to 1.4.3 for 3.10 compatiblity (#2519)
+- Declare support for Python 3.10 (#2562)
 
 ### _Blackd_
 
diff --git a/setup.py b/setup.py
index de84dc37bb8..6ba4d2d8735 100644
--- a/setup.py
+++ b/setup.py
@@ -104,6 +104,7 @@ def get_long_description() -> str:
         "Programming Language :: Python :: 3.7",
         "Programming Language :: Python :: 3.8",
         "Programming Language :: Python :: 3.9",
+        "Programming Language :: Python :: 3.10",
         "Programming Language :: Python :: 3 :: Only",
         "Topic :: Software Development :: Libraries :: Python Modules",
         "Topic :: Software Development :: Quality Assurance",