diff --git a/clipkit/version.py b/clipkit/version.py
index a7ecb80..55e4709 100644
--- a/clipkit/version.py
+++ b/clipkit/version.py
@@ -1 +1 @@
-__version__ = "2.2.6"
+__version__ = "2.3.0"
diff --git a/docs/change_log/index.rst b/docs/change_log/index.rst
index 2c7ba65..6353dd9 100644
--- a/docs/change_log/index.rst
+++ b/docs/change_log/index.rst
@@ -8,6 +8,9 @@ Change log
 
 Major changes to ClipKIT are summarized here.
 
+**2.3.0**
+Added support for Python version 3.11
+
 **2.2.3**
 Fixed gap character handling. The help message was incongruent
 with what was happening underneath the hood.
diff --git a/setup.py b/setup.py
index 2109922..d898386 100644
--- a/setup.py
+++ b/setup.py
@@ -14,10 +14,11 @@
     "Programming Language :: Python",
     "Programming Language :: Python :: 3.9",
     "Programming Language :: Python :: 3.10",
+    "Programming Language :: Python :: 3.11",
     "Topic :: Scientific/Engineering",
 ]
 
-REQUIRES = ["biopython>=1.81", "numpy>=1.24.0", "cython"]
+REQUIRES = ["biopython>=1.82", "numpy>=1.24.0", "cython"]
 
 setup(
     name="clipkit",