diff --git a/.github/workflows/linter.yml b/.github/workflows/linter.yml
index 14e7642..8b9cb4c 100644
--- a/.github/workflows/linter.yml
+++ b/.github/workflows/linter.yml
@@ -7,7 +7,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: ['3.8', '3.9', '3.10', '3.11', '3.12']
+        python-version: ['3.9', '3.10', '3.11', '3.12']
     steps:
     - uses: actions/checkout@v4
     - name: Set up Python environment
@@ -25,7 +25,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: ['3.8', '3.9', '3.10', '3.11', '3.12']
+        python-version: ['3.9', '3.10', '3.11', '3.12']
     steps:
     - uses: actions/checkout@v4
     - name: Set up Python environment
@@ -43,7 +43,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: ['3.8', '3.9', '3.10', '3.11', '3.12']
+        python-version: ['3.9', '3.10', '3.11', '3.12']
     steps:
     - uses: actions/checkout@v4
     - name: Set up Python environment
@@ -61,7 +61,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: ['3.8', '3.9', '3.10', '3.11', '3.12']
+        python-version: ['3.9', '3.10', '3.11', '3.12']
     steps:
     - uses: actions/checkout@v4
     - name: Set up Python environment
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index de3cb9a..5b6d694 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -8,7 +8,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: ['3.8', '3.9', '3.10', '3.11', '3.12']
+        python-version: ['3.9', '3.10', '3.11', '3.12']
 
     name: Python ${{ matrix.python-version }} tests
 
diff --git a/README.md b/README.md
index 0373329..0e12964 100644
--- a/README.md
+++ b/README.md
@@ -16,7 +16,7 @@ A library for interacting with APNs and VoIP using HTTP/2.
 
 ## Installation
 
-kalyke requires python 3.8 or later.
+kalyke requires python 3.9 or later.
 
 ```bash
 $ pip install kalyke-apns
diff --git a/poetry.lock b/poetry.lock
index d4b218e..844a1a0 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -826,5 +826,5 @@ socks = ["PySocks (>=1.5.6,!=1.5.7,<2.0)"]
 
 [metadata]
 lock-version = "2.0"
-python-versions = "^3.7"
-content-hash = "f56c7b9dac4c21422a659b35ea18f64b74d5f42f50eafb2f3e8ea782dc324715"
+python-versions = "^3.9"
+content-hash = "3788c84505cd6140d2710dee800e241d37c4068665edd6c90ca96ff393cd4422"
diff --git a/pyproject.toml b/pyproject.toml
index 0ce1800..ef425a4 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -9,17 +9,17 @@ repository = "https://github.com/nnsnodnb/kalyke"
 keywords = ["apns", "voip", "apns provider api", "apple push notifications"]
 classifiers = [
     "Programming Language :: Python :: 3",
-    "Programming Language :: Python :: 3.8",
     "Programming Language :: Python :: 3.9",
     "Programming Language :: Python :: 3.10",
-    "Programming Language :: Python :: 3.11"
+    "Programming Language :: Python :: 3.11",
+    "Programming Language :: Python :: 3.12"
 ]
 packages = [
     { include = "kalyke" }
 ]
 
 [tool.poetry.dependencies]
-python = "^3.8"
+python = "^3.9"
 httpx = {extras = ["http2"], version = "^0.23.1"}
 PyJWT = "^2.6.0"
 cryptography = ">=39,<42"