diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 2f7a874e..a0c3f668 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -17,7 +17,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ["3.9", "3.10", "3.11", "3.12"]
+        python-version: ["3.9", "3.10", "3.11", "3.12", "3.13"]
 
     services:
       redis:
@@ -77,7 +77,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ["3.9", "3.10", "3.11", "3.12"]
+        python-version: ["3.9", "3.10", "3.11", "3.12", "3.13"]
 
     steps:
       - uses: actions/checkout@v4
diff --git a/README.md b/README.md
index c70e6889..fb0adf89 100644
--- a/README.md
+++ b/README.md
@@ -14,7 +14,7 @@
 
 ## Supported Python versions
 
-This version of the LaunchDarkly SDK is compatible with Python 3.8 through 3.12. It is tested with the most recent patch releases of those versions. Python versions 2.7 to 3.6 are no longer supported.
+This version of the LaunchDarkly SDK is compatible with Python 3.9+.
 
 ## Getting started
 
diff --git a/pyproject.toml b/pyproject.toml
index bedb2ad8..e0d0a487 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -13,11 +13,11 @@ classifiers = [
     "License :: OSI Approved :: Apache Software License",
     "Operating System :: OS Independent",
     "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 :: 3.12",
+    "Programming Language :: Python :: 3.13",
     "Topic :: Software Development",
     "Topic :: Software Development :: Libraries",
 ]
@@ -27,7 +27,7 @@ exclude = [
 ]
 
 [tool.poetry.dependencies]
-python = ">=3.8"
+python = ">=3.9"
 certifi = ">=2018.4.16"
 expiringdict = ">=1.1.4"
 pyRFC3339 = ">=1.0"
@@ -86,7 +86,7 @@ urllib3 = ">=1.26.0"
 jinja2 = "3.1.3"
 
 [tool.mypy]
-python_version = "3.8"
+python_version = "3.9"
 ignore_missing_imports = true
 install_types = true
 non_interactive = true