diff --git a/poetry/core/packages/package.py b/poetry/core/packages/package.py
index 9f7bc7163..02c289386 100644
--- a/poetry/core/packages/package.py
+++ b/poetry/core/packages/package.py
@@ -47,6 +47,7 @@ class Package(PackageSpecification):
         "3.7",
         "3.8",
         "3.9",
+        "3.10",
     }
 
     def __init__(
diff --git a/tests/masonry/builders/test_builder.py b/tests/masonry/builders/test_builder.py
index 209cde80b..57d41be34 100644
--- a/tests/masonry/builders/test_builder.py
+++ b/tests/masonry/builders/test_builder.py
@@ -89,6 +89,7 @@ def test_get_metadata_content():
     assert classifiers == [
         "License :: OSI Approved :: MIT License",
         "Programming Language :: Python :: 3",
+        "Programming Language :: Python :: 3.10",
         "Programming Language :: Python :: 3.6",
         "Programming Language :: Python :: 3.7",
         "Programming Language :: Python :: 3.8",
diff --git a/tests/masonry/builders/test_complete.py b/tests/masonry/builders/test_complete.py
index 4248a87a2..e8b634ec6 100644
--- a/tests/masonry/builders/test_complete.py
+++ b/tests/masonry/builders/test_complete.py
@@ -269,6 +269,7 @@ def test_complete():
 Requires-Python: >=3.6,<4.0
 Classifier: License :: OSI Approved :: MIT License
 Classifier: Programming Language :: Python :: 3
+Classifier: Programming Language :: Python :: 3.10
 Classifier: Programming Language :: Python :: 3.6
 Classifier: Programming Language :: Python :: 3.7
 Classifier: Programming Language :: Python :: 3.8
@@ -372,6 +373,7 @@ def test_complete_no_vcs():
 Requires-Python: >=3.6,<4.0
 Classifier: License :: OSI Approved :: MIT License
 Classifier: Programming Language :: Python :: 3
+Classifier: Programming Language :: Python :: 3.10
 Classifier: Programming Language :: Python :: 3.6
 Classifier: Programming Language :: Python :: 3.7
 Classifier: Programming Language :: Python :: 3.8
diff --git a/tests/masonry/test_api.py b/tests/masonry/test_api.py
index adbbddeba..7dff3a9d5 100644
--- a/tests/masonry/test_api.py
+++ b/tests/masonry/test_api.py
@@ -162,6 +162,7 @@ def test_prepare_metadata_for_build_wheel():
 Requires-Python: >=3.6,<4.0
 Classifier: License :: OSI Approved :: MIT License
 Classifier: Programming Language :: Python :: 3
+Classifier: Programming Language :: Python :: 3.10
 Classifier: Programming Language :: Python :: 3.6
 Classifier: Programming Language :: Python :: 3.7
 Classifier: Programming Language :: Python :: 3.8
diff --git a/tests/test_factory.py b/tests/test_factory.py
index af920e0d1..605e34e51 100644
--- a/tests/test_factory.py
+++ b/tests/test_factory.py
@@ -123,6 +123,7 @@ def test_create_poetry():
         "Programming Language :: Python :: 2",
         "Programming Language :: Python :: 2.7",
         "Programming Language :: Python :: 3",
+        "Programming Language :: Python :: 3.10",
         "Programming Language :: Python :: 3.6",
         "Programming Language :: Python :: 3.7",
         "Programming Language :: Python :: 3.8",