diff --git a/.github/workflows/linter.yml b/.github/workflows/linter.yml
index 88c924c..899cec1 100644
--- a/.github/workflows/linter.yml
+++ b/.github/workflows/linter.yml
@@ -7,7 +7,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: ['3.7', '3.8', '3.9', '3.10', '3.11']
+        python-version: ['3.8', '3.9', '3.10', '3.11']
     steps:
     - uses: actions/checkout@v4
     - name: Set up Python environment
@@ -25,7 +25,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: ['3.7', '3.8', '3.9', '3.10', '3.11']
+        python-version: ['3.8', '3.9', '3.10', '3.11']
     steps:
     - uses: actions/checkout@v4
     - name: Set up Python environment
@@ -43,7 +43,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: ['3.7', '3.8', '3.9', '3.10', '3.11']
+        python-version: ['3.8', '3.9', '3.10', '3.11']
     steps:
     - uses: actions/checkout@v4
     - name: Set up Python environment
@@ -61,7 +61,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: ['3.7', '3.8', '3.9', '3.10', '3.11']
+        python-version: ['3.8', '3.9', '3.10', '3.11']
     steps:
     - uses: actions/checkout@v4
     - name: Set up Python environment
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index e861561..f1a2439 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -15,7 +15,7 @@ jobs:
     - name: Setup Python
       uses: actions/setup-python@v4
       with:
-        python-version: 3.9
+        python-version: '3.11'
 
     - name: Install dependencies
       run: |
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 8770f6e..caed746 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -8,7 +8,7 @@ jobs:
     runs-on: ubuntu-20.04
     strategy:
       matrix:
-        python-version: ['3.7', '3.8', '3.9', '3.10', '3.11']
+        python-version: ['3.8', '3.9', '3.10', '3.11']
 
     name: Python ${{ matrix.python-version }} tests
 
diff --git a/README.md b/README.md
index ba81a60..0373329 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 3.7 or later.
+kalyke requires python 3.8 or later.
 
 ```bash
 $ pip install kalyke-apns
diff --git a/pyproject.toml b/pyproject.toml
index 2396ac2..4b22b0f 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -20,7 +20,7 @@ packages = [
 ]
 
 [tool.poetry.dependencies]
-python = "^3.7"
+python = "^3.8"
 httpx = {extras = ["http2"], version = "^0.23.1"}
 PyJWT = "^2.6.0"
 cryptography = ">=39,<42"