diff --git a/.github/workflows/pr.yml b/.github/workflows/pr.yml
index 7fb8b4f..a5d6950 100644
--- a/.github/workflows/pr.yml
+++ b/.github/workflows/pr.yml
@@ -11,7 +11,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ["3.9", "3.10", "3.11", "3.12", "3.13"]
+        python-version: ["3.10", "3.11", "3.12", "3.13"]
 
     steps:
     - uses: actions/checkout@v4
diff --git a/pyproject.toml b/pyproject.toml
index d98c594..9c4a440 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -55,11 +55,6 @@ matrix-name-format = "{variable}={value}"
 [tool.hatch.envs.test.scripts]
 test = "pytest {args}"
 
-[[tool.hatch.envs.test.matrix]]
-# Only test with numpy v1 on Python 3.9
-python = ["3.9"]
-numpy-version = ["1"]
-
 [[tool.hatch.envs.test.matrix]]
 python = ["3.10", "3.11", "3.12", "3.13"]
 numpy-version = ["1", "2"]