diff --git a/src/poetry/core/packages/package.py b/src/poetry/core/packages/package.py
index 8396aa346..009780e78 100644
--- a/src/poetry/core/packages/package.py
+++ b/src/poetry/core/packages/package.py
@@ -45,6 +45,7 @@ class Package(PackageSpecification):
         "3.8",
         "3.9",
         "3.10",
+        "3.11",
     }
 
     def __init__(
diff --git a/src/poetry/core/version/helpers.py b/src/poetry/core/version/helpers.py
index eafac8fd9..7e72eccc7 100644
--- a/src/poetry/core/version/helpers.py
+++ b/src/poetry/core/version/helpers.py
@@ -23,6 +23,7 @@
     "3.8.*",
     "3.9.*",
     "3.10.*",
+    "3.11.*",
 ]
 
 
diff --git a/tests/masonry/builders/test_builder.py b/tests/masonry/builders/test_builder.py
index 092046f36..a6182b2bf 100644
--- a/tests/masonry/builders/test_builder.py
+++ b/tests/masonry/builders/test_builder.py
@@ -101,6 +101,7 @@ def test_get_metadata_content() -> None:
         "Programming Language :: Python :: 3.8",
         "Programming Language :: Python :: 3.9",
         "Programming Language :: Python :: 3.10",
+        "Programming Language :: Python :: 3.11",
         "Topic :: Software Development :: Build Tools",
         "Topic :: Software Development :: Libraries :: Python Modules",
     ]
diff --git a/tests/masonry/builders/test_complete.py b/tests/masonry/builders/test_complete.py
index 0517acd0b..40659b8ca 100644
--- a/tests/masonry/builders/test_complete.py
+++ b/tests/masonry/builders/test_complete.py
@@ -276,6 +276,7 @@ def test_complete() -> None:
 Classifier: Programming Language :: Python :: 3.8
 Classifier: Programming Language :: Python :: 3.9
 Classifier: Programming Language :: Python :: 3.10
+Classifier: Programming Language :: Python :: 3.11
 Classifier: Topic :: Software Development :: Build Tools
 Classifier: Topic :: Software Development :: Libraries :: Python Modules
 Provides-Extra: time
@@ -400,6 +401,7 @@ def test_complete_no_vcs() -> None:
 Classifier: Programming Language :: Python :: 3.8
 Classifier: Programming Language :: Python :: 3.9
 Classifier: Programming Language :: Python :: 3.10
+Classifier: Programming Language :: Python :: 3.11
 Classifier: Topic :: Software Development :: Build Tools
 Classifier: Topic :: Software Development :: Libraries :: Python Modules
 Provides-Extra: time
diff --git a/tests/masonry/test_api.py b/tests/masonry/test_api.py
index 3bec5d45e..1ba6d8edd 100644
--- a/tests/masonry/test_api.py
+++ b/tests/masonry/test_api.py
@@ -165,6 +165,7 @@ def test_prepare_metadata_for_build_wheel() -> None:
 Classifier: Programming Language :: Python :: 3.8
 Classifier: Programming Language :: Python :: 3.9
 Classifier: Programming Language :: Python :: 3.10
+Classifier: Programming Language :: Python :: 3.11
 Classifier: Topic :: Software Development :: Build Tools
 Classifier: Topic :: Software Development :: Libraries :: Python Modules
 Provides-Extra: time
diff --git a/tests/test_factory.py b/tests/test_factory.py
index d8e493bda..6ca71b041 100644
--- a/tests/test_factory.py
+++ b/tests/test_factory.py
@@ -143,6 +143,7 @@ def test_create_poetry() -> None:
         "Programming Language :: Python :: 3.8",
         "Programming Language :: Python :: 3.9",
         "Programming Language :: Python :: 3.10",
+        "Programming Language :: Python :: 3.11",
         "Topic :: Software Development :: Build Tools",
         "Topic :: Software Development :: Libraries :: Python Modules",
     ]