diff --git a/README.rst b/README.rst
index a66d1b4e..e251f98f 100644
--- a/README.rst
+++ b/README.rst
@@ -10,8 +10,8 @@ integer type (`mpz`_), compatible with Python's `int`_.  It includes few
 functions (`comb`_, `factorial`_, `gcd`_, `isqrt`_, `lcm`_ and `perm`_),
 compatible with the Python stdlib's module `math`_.
 
-This module requires Python 3.9 or later versions and has been tested with
-CPython 3.9 through 3.14, with PyPy3.11 7.3.20 and with GraalPy 25.0.
+This module requires Python 3.11 or later versions and has been tested with
+CPython 3.11 through 3.14, with PyPy3.11 7.3.20 and with GraalPy 25.0.
 Free-threading builds of the CPython are supported.
 
 Releases are available in the Python Package Index (PyPI) at
diff --git a/pyproject.toml b/pyproject.toml
index 42706960..1bbf790c 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -20,8 +20,6 @@ classifiers = ["Development Status :: 4 - Beta",
                "Programming Language :: C",
                "Programming Language :: Python :: 3",
                "Programming Language :: Python :: 3 :: Only",
-               "Programming Language :: Python :: 3.9",
-               "Programming Language :: Python :: 3.10",
                "Programming Language :: Python :: 3.11",
                "Programming Language :: Python :: 3.12",
                "Programming Language :: Python :: 3.13",
@@ -36,7 +34,7 @@ classifiers = ["Development Status :: 4 - Beta",
                "Operating System :: MacOS",
                "Topic :: Scientific/Engineering :: Mathematics",
                "Topic :: Software Development :: Libraries :: Python Modules"]
-requires-python = ">= 3.9"
+requires-python = ">= 3.11"
 
 [project.urls]
 Homepage = "https://github.com/diofant/python-gmp"
diff --git a/tests/test_mpz.py b/tests/test_mpz.py
index e46dcbb2..65ce187a 100644
--- a/tests/test_mpz.py
+++ b/tests/test_mpz.py
@@ -808,9 +808,7 @@ def test_getters(x):
 @given(bigints())
 def test_methods(x):
     mx = mpz(x)
-    methods = ["conjugate", "bit_length", "as_integer_ratio"]
-    if sys.version_info >= (3, 10):
-        methods.append("bit_count")
+    methods = ["conjugate", "bit_length", "as_integer_ratio", "bit_count"]
     if sys.version_info >= (3, 12):
         methods.append("is_integer")
     for name in methods: