diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 6a33ab42..0ff53df2 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -22,7 +22,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: ['3.9', '3.10', '3.11', '3.12']
+        python-version: ['3.10', '3.11', '3.12']
     steps:
     - uses: actions/checkout@v4
       with:
diff --git a/pyproject.toml b/pyproject.toml
index 7baa4d73..44f6a035 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -11,7 +11,6 @@ classifiers = [
     "Operating System :: OS Independent",
     "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",
@@ -34,7 +33,7 @@ maintainers = [
 ]
 name = "glass"
 readme = "README.md"
-requires-python = ">=3.9"
+requires-python = ">=3.10"
 license.file = "LICENSE"
 
 [project.optional-dependencies]