diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 0caa061..f90c127 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -20,11 +20,9 @@ jobs:
       fail-fast: false
       # https://blog.jaraco.com/efficient-use-of-ci-resources/
       matrix:
-        python: ["3.8", "3.12"]
+        python: ["3.9", "3.12"]
         platform: ["ubuntu", "macos", "windows"]
         include:
-        - python: "3.9"
-          platform: "ubuntu"
         - python: "3.10"
           platform: "ubuntu"
         - python: "3.11"
diff --git a/README.md b/README.md
index cf4a146..26a312a 100644
--- a/README.md
+++ b/README.md
@@ -17,13 +17,11 @@ $ pip install ixia
 Ixia documentation is available at https://trag1c.github.io/ixia/.
 
 ## ⚠️ Important Notes
-While supporting Python 3.8+, Ixia is based on the Python 3.12 implementation
+While supporting Python 3.9+, Ixia is based on the Python 3.12 implementation
 of the `random` module. The following changes have been made to the module
-since Python 3.8:
-- `getrandbits` accepts 0 for `k`
-- `choices` raises a `ValueError` if all weights are zero
-- `sample` has a new `counts` parameter
-- `gauss` and `normal_variate` have default parameter values
+since Python 3.9:
+- `gauss`, `expovariate` and `normalvariate` have default parameter values
+- `binomialvariate` was added
 
 Additionally, Ixia executes 3.9+ deprecations, thus:
 - `ixia.rand_range` doesn't convert non-integer types to equivalent integers
diff --git a/docs/index.md b/docs/index.md
index ae5a917..fcb7cfb 100644
--- a/docs/index.md
+++ b/docs/index.md
@@ -7,13 +7,10 @@ functions, such as [`ixia.passphrase()`](strings_and_bytes.md#ixiapassphrase),
 values are generated using `urandom` (or `BCryptGenRandom` on Windows).
 
 ## ⚠️ Important Notes
-While supporting Python 3.8+, Ixia is based on the Python 3.12 implementation
+While supporting Python 3.9+, Ixia is based on the Python 3.12 implementation
 of the `random` module. The following changes have been made to the module
-since Python 3.8:
+since Python 3.9:
 
-- `getrandbits` accepts 0 for `k`
-- `choices` raises a `ValueError` if all weights are zero
-- `sample` has a new `counts` parameter
 - `gauss`, `expovariate` and `normalvariate` have default parameter values
 - `binomialvariate` was added
 
diff --git a/ixia/date_time.py b/ixia/date_time.py
index 35247c4..1880483 100644
--- a/ixia/date_time.py
+++ b/ixia/date_time.py
@@ -1,17 +1,17 @@
 from __future__ import annotations
 
 import datetime as dt
-from typing import Tuple, Union
+from typing import Union
 
 from .integers import rand_below, rand_int
 
-Datelike = Union[str, int, Tuple[int, int, int], dt.date, dt.datetime]
+Datelike = Union[str, int, tuple[int, int, int], dt.date, dt.datetime]
 Timelike = Union[
     str,
     int,
-    Tuple[int, int],
-    Tuple[int, int, int],
-    Tuple[int, int, int, int],
+    tuple[int, int],
+    tuple[int, int, int],
+    tuple[int, int, int, int],
     dt.time,
     dt.datetime,
 ]
diff --git a/poetry.lock b/poetry.lock
index f2ceb87..063d0a0 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -1,4 +1,4 @@
-# This file is automatically @generated by Poetry 1.8.2 and should not be changed by hand.
+# This file is automatically @generated by Poetry 1.8.3 and should not be changed by hand.
 
 [[package]]
 name = "attrs"
@@ -1089,5 +1089,5 @@ testing = ["big-O", "jaraco.functools", "jaraco.itertools", "more-itertools", "p
 
 [metadata]
 lock-version = "2.0"
-python-versions = "^3.8"
-content-hash = "94283bc79075a7f4dd8894c21b3eb5b4a97631139579c71af9f379abf9252960"
+python-versions = "^3.9"
+content-hash = "34525f7861abf3b7db10ae4986179927cae085243d47a60e3a044e824a8d70ff"
diff --git a/pyproject.toml b/pyproject.toml
index 0414841..125235b 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -9,7 +9,7 @@ repository = "https://github.com/trag1c/ixia"
 readme = "README.md"
 
 [tool.poetry.dependencies]
-python = "^3.8"
+python = "^3.9"
 
 [tool.poetry.group.dev.dependencies]
 mypy = "^1.5.0"